NEWS
Analytical Chemist Visits Soviet Union Progress in Analysis a n d Instrumentation N o t e d Attendance a t a SympoM oscow. sium on the Use of Radioactive Isotopes, held here December 2 to 4, presented a good opportunity to observe Soviet analysts and analytical techniques and instrumentation. It was evident t h a t analytical chemistry is recognized fully as a scientific b r a n c h of chemistry and t h a t t h e Soviet Union is making a wide variety of precision analytical instrumentation. T h e tremendous social prestige of the U.S.S.R. Academy of Sciences,
sponsor of the symposium, was m a d e evident immediately after arrival in Moscow. I . P . Alimarin, professor of analytical chemistry in Lomonosov Moscow University (which had just celebrated its 200th anniversary) a n d head of analytical research in the Vernadsky Institute of Geochemistry a n d Analytical Chemistry, was at the plane t o welcome me. Soon we found ourselves in the reception room (intourist) of the airport. After about 15 minutes, m y passport was returned, with t h e announcement t h a t the baggage was being loaded in Professor Alimarin's car. N o examination, no formalities. T w o days before departure, it occurred to me t h a t I h a d not even filled out a money declaration. U p o n inquiry, the efficient young m a n who was assigned to assist us during t h e stay in Moscow explained t h a t such a form was necessary but t h a t I need n o t worry. H o w m u c h money did I I. M . KOLTHOFF. Considering the current interest in Soviet science and technology, the editors are pleased to present a brief report on this topic by the well known analytical chemist, I. M . Kolthoff, professor and head of the Division of Analytical Chemistry, University of Minnesota. KolthofF prepared this article exclusively for the readers of Analytical Chemistry.
carry in cash, checks, and letter of credit? H e went to the Academy of Sciences a n d received a letter t o this effect. U p o n d e p a r t u r e in the R u s sian jet (550 miles per hour) to Prague, the young m a n took care of all formalities. During m y visit, I did not meet an official nor was I requested t o answer any questions. During our stay there was a n o p portunity to visit research institutes and laboratories in Lomonosov Moscow University. All research institutes are under the auspices of the U.S.S.R. Academy of Sciences; they have n o direct connection with universities. However, directors a n d supervisors of research usually are also p a r t - t i m e teachers, for which they receive extra pay. T h e research institutes are crowded with workers, men and women, of various ages. Emphasis is entirely on fundamental research, for which a p parently unlimited funds are being made available. During m y visit in 1945, I had n o ticed t h a t practically none of the instruments and equipment were of R u s sian make. At this time I was impressed, if not awed, b y the fact t h a t almost all the instruments, including those for refined measurements, are made in Russia. F o r example, in the Geochemical Institute, headed by VOL. 30, NO. 3, MARCH 1958
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31 A
NEWS
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Academician A. Vinogradov, we saw automatic balances, including microbalances, weighing to 0.001 mg., mass spectrometers, polarographs, spectro photometers, equipment for radioactive analysis, etc., all made in Russia. The output in research is tremendous, but we definitely hold our own in the field of analytical chemistry. The State University of Moscow is a monumental building and was Stalin's pride. It is situated on the outskirts of Moscow. The departments of chem istry and of physics occupy large build ings on either side of the main build ing in which the other natural sciences are taught. The applied sciences, in cluding engineering and chemical tech nology, are taught in buildings and schools in "downtown" Moscow. The new university complex is devoted en tirely to the "pure" sciences. Its 32story main building serves as a uni versity town. In addition to labora tories, classrooms, etc., it includes dor mitories for part of the students and the faculty, dining rooms for students and for teachers, swimming pools, a theater, a concert hall, and a host of recreation rooms. There is a library of five and a half million volumes. The students receive a government allowance and are not charged tuition fees. Even though their high school education system is on a much higher level than in this country, the students must pass an entrance examination. Compared with the number of our students, their total of more than 1500 in chemistry (not including chemical engineering) is overwhelm ing. I was their guest on the last afternoon in Moscow and submitted to a barrage of questions concerning our universities and life of students. Their disapproval of our system of tuition fees was evident. When I explained that a large number of our students work their way through school, my audience was quite critical. They said their own schedule of courses and home work is so tight that their free time must be devoted to recreation. They were particularly puzzled by the fact that our public schools have no tuition fees, while our universities do. When pressed for comments, I suggested that perhaps some day the U. S. public may recognize that provision for higher education is not a favor to the students, but a necessity from the viewpoint of national welfare and security. Their laboratories for graduate edu cation in analytical chemistry are abundantly equipped with modern in struments. They have separate large laboratories for microchemistry, for electrochemical methods, for optical methods of analysis, and a separate emission spectroscopy laboratory. As
compared to their laboratories, our advanced analytical facilities at Min nesota are a kindergarten. The symposium on the use of radio active isotopes in analytical chemistry was attended by Dr. Harry Irving and me from the western countries and some fifteen chemists from Czechoslovakia, Hungary, Poland, Bulgaria, Romania, and Yugoslavia. There were, in addi tion, three Chinese chemists present— two men and a woman. One of the men and the young lady had taken their Ph.D. degrees in the United States (Wisconsin, with V. W. Meloche, 1937, and University of Illinois, 1951). The third Chinese chemist had earned his Ph.D. at the University of Munich under the late Professor Hoenigschmidt, one of the world's experts on the deter mination of atomic weights. The Chi nese trio spoke flawless English, and we conversed without inhibition. They admitted that the educational system is not yet as advanced as Russia's; it is possible to get only a bachelor's de gree in China. But they hope that study for advanced degrees will be come possible reasonably soon. The above symposium had been pre ceded by a three-day colloquium on complexometric methods of analysis, to which Irving and I had not been invited. At the radioactive symposium the translation system during the talks was excellent and there was time for dis cussion. The sessions were held from 10 to 1 and from 5 to 8. In addition to the papers, abstracts of which are given below, Irving gave a talk on the determination of traces of indium by radioactivation and I gave a talk on the use of radioactive isotopes for the determination of the degree of per fection of crystalline precipitates. We each had a complete morning session for the presentation and discussion. Brief English translations of papers presented at this symposium appear below. Separation of Rare Earths by Means of Radioactive Tracers. A. V. NIKOLAEV, A.
A.
SOEOKINA, AND A.
S.
MASLEN-
N I KO VA.
Separation of cerium and lanthanum from other rare earths by the ammonia method, of cerium and praseodymium by extraction with tributyl phosphate, and of praseodymium and neodymium from samarium and europium has been studied with rare earth radioisotopes. Isotope Dilution Method for Deter mination of Some Rare Elements. I. P. ALIMAEIN AND G. N. BILIMOVICH.
Methods have been developed for sep arating tantalum from titanium, zir conium, and niobium by precipitation with CeHeSeC^NHi. Tantalum is deter mined by the isotope dilution method.
Circle No. 33 λ on Readers' Service Card, page 83 A
VOL. 30, NO. 3, MARCH 1958
•
33 A
NEWS
Fast-accurate
SULFUR analysis
Chromatographic Study of Zirconium and Hafnium Complexing with Oxalate
Ion Exchange Radiochemical Method for Determining Metal Traces. K. V.
Ion. A. N . EBMAKOV, V. AND I. N . MAROV.
TROITSKY.
K.
BELYAEVA,
The existence of various types of zir conium and hafnium oxalate complexes has been established by the anion ex change method. Anionites m a y be used for calculating stability constants of multiply charged ions forming stable complexes in a strongly acid medium. Nonisotopic Indicators in Analytical Chemistry.
I. M . KORENMAN AND F . R.
SHEYANOVA.
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A radioactivation method determines (with accuracy to ± 1 0 to 15%) micro quantities of nickel, cobalt, copper, tel lurium, arsenic, and antimony admixed in ferrous oxide. Analysis of Binary T a n t a l u m - N i o bium Alloys by /3-Rays Reflection Tech nique (Back Scattering). V. B . GAIDADYMOV AND L . I . I L Y I N A .
A method has been worked out for rapid and accurate analysis of titaniumniobium alloys by the /3-ray reflection technique. Method of Repeated Radioactive D i lution for Determining Small Amounts of Admixtures.
G. S. ROZHAVSKY AND
I. E. ZIMAKOV.
A modification of the isotope dilution method without determination of spe cific activity of the sample has been suggested. Determination of Alcohols by the Isotope Dilution Method. M. B. N E I MAN, V. FILO.
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•
ANALYTICAL CHEMISTRY
Y.
EFREMOV, AND V.
N.
PAN-
Determination of methanol and ethanol (present together) by the isotope dilution method has been used for deter mining the low alcohol content in prod ucts of oxidation of propylene and bu tane.
A. K. LAVRTJKHINA.
General characteristics of radiochemi cal analysis are given—concentrations of macro- and micro-components, time fac tor, carrier applications, experimental dif ficulties causing loss of radioéléments. Principal methods of isolation of radiochemically pure isotopes are described. The behavior of radioéléments in various chemical analyses has been investigated. Isolation from Complex Mixtures and Purification of Some Short-Lived IsoV. P . SHVEDOV AND L. M. IVA-
N0VA.
A method has been developed for the rapid isolation of Mo"", Ag111, Cd115, and Ba l m from a complex mixture of uranium fission fragments. Applications of Radioactive Isotopes in Chromatography.
M. M. SENYAVIN.
Some problems of chromatographic analysis are considered which cannot be solved without use of radioactive isotopes—separation of very small amounts of substances, quantitative analysis by isotope dilution technique, etc. Adsorption of Ruthenium from Solutions on Ion Exchange Resins. E. I. ILYENKO, B. TROFIMOV.
P.
NIKOLSKY, AND A.
M.
The possibility of chromatographic separation of ruthenium nitroso-nitrate complexes has been investigated. The behavior of these complexes toward home-made resins of various types has been studied. Trihydroxyglutaric Acid as Eluent in Chromatographic Separation of Rare Earths.
A. K. LAVRTJKHINA, K. Y U N -
P I N , AND V.
KNOBLOKH.
The optimum conditions for separating rare earths have been investigated. Trihydroxyglutaric acid is no less effective than lactic acid. Application of Radioactive Isotopes for Separating Elements by Anionites. A . A . PoZDNYAKOV AND A . KHINA.
K.
LAVRTJ-
Radiometric Titration with Solutions of Cobalt-60 Complex Compounds. K .
A number of methods have been developed for separating elements (rare earths; titanium, vanadium, and chromium; manganese, iron, cobalt, nickel, copper, and zinc) by anionites. The methods were used for separating lanthanum fission products as a result of proton bombardment with the incident energy of 680 m.e.v. The influence of anionites nature on the sorption of trivalent cerium has been studied. Behavior of Molybdenum and Rhenium Toward Anionites During Separa-
B. YATSIMIRSKY AND E . N . ROSLYAKOVA.
tion.
Large anions (phosphate, sulfate, and molybdate) are determined by titrating with a luteochloride solution containing cobalt-60 as precipitator.
Separation of molybdenum and rhenium is possible because of their different sorption on anionite in 2 Ai phosphoric acid. Rhenium can be sepa-
Catalog!
16 page Dietert-Detroit Cata log illustrates and describes both Sulfur and Carbrn Determinatorsand complete line of accessory equipment and supplies.
9330 ROSELAWN
sis.
topes.
Quantitative Determination of Metal Micro-Impurities in Ferrous Oxide by the Radioactivation Method. A. I.
H0H-ït» 0 U S
ulk,
Nonisotopic indicators are used in ra diometric titration with precipitation and extraction of the reaction products. Their importance for analytical chemistry has been shown. T h e possibility of their use for determination of solubility has been demonstrated.
A radiochemical method for determin ing metal traces is based on the exchange reaction between the radioactive iso tope suspension and the ion of the ele ment to be determined in the solution. Peculiarities of Radiochemical Analy
Rapid Method for Determining Ru bidium in Silicate Minerals. E. S. B U R K S E R AND T . G . K O R N I E N K O .
Rubidium is determined in silicate minerals by isotope dilution in combina tion with rubidium chloride extraction from a mixture of alkaline metal chlorides by alcohol saturated with hydrogen chloride.
L. V. BORISOVA.
NEWS rated from tungsten and technetium from molybdenum. Concentration of Microelements in Natural Waters by Isolation with Sink ing Ionite or Metal Particles. V. B. ALESKOVSKY AND S. L. DOBYCHIN.
Sorbing micro quantities of silver, zinc, and strontium by sinking cationite (Vofatite KS) particles in the presence of macro quantities of other elements has been investigated. T h e process of cementing micro quantities of zinc and silver by metal particles has been stud ied. Methods have been developed for concentrating lead, copper, cadmium, and zinc from natural waters.
Electrolytic Isolation of Rare Earth Radioactive Isotopes. A. G. SAMARTSEVA.
A method for quantitative electro lytic isolation of La140, Ce14°, Pr140, Ηο1ββ, and Lu17V from nitric, hydrochloric, sul furic, perchloric, and oxalic acid solutions can be used for isolating these isotopes without a carrier and for their analytical determination. Coprecipitation of Some Elements in Low Concentrations with Metal Hy droxides. YtJ. V. MOEACHEVSKY AND Α. Ι. Νονικον. Coprecipitation of Sr, La, Ce, Y, R e , Ga, Zr, Ru, and I n with ferric hydroxide
lias been investigated as well as Sr, La, Ce, and Y with aluminum, beryllium, and titanium hydroxides. T h e condi tions permit varying widely the degree of coprecipitation. Coprecipitation of Gallium, Indium, and Thallium with Calcium Phosphate. YTJ. V . MoRACHEVSKY AND V . N . Z.AITSEV.
Factors influencing the coprecipitation of gallium, indium, and thallium with calcium phosphate have been studied. Because of difference in coprecipitation conditions, these elements can be sepa rated quantitatively. Coprecipitation of Zirconium with Cerous Oxalate in a Nitric Acid Me dium.
V. P . SHVEDOV AND N . A. PAVLOVA.
Factors influencing the coprecipitation of zirconium with cerous oxalate have been investigated. Conditions have been found under which the smallest quanti ties of zirconium are carried down with the precipitate. Distribution of Lead and Bismuth Isotopes between Solution and Sodium Chloride Crystals. M . S. MERKULOVA,
going α
long
I. V. MELIKHOV, M. G. MULYAROVA, AND B. V. STRIZHKOV.
way
The different nature of lead and bis muth distribution between the solution and the sodium chloride precipitate per mits separating isotopes of these ele ments. Several variants of the method of separation have been suggested. Carbonate Method for Separating Micro Quantities of Uranium from Ap preciable Quantities of Iron. I. E . STARTK, F . E. STARIK, A. X. AiOL-
laboratory Apparatus
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•
ANALYTICAL CHEMISTRY
Small quantities of uranium can be completely separated from appreciable quantities of iron by use of ammonium carbonate and sodium bicarbonate as precipitators. A method has been worked out for separating 1CTS to 1CTS gram of uranium from considerable amounts of iron. Precipitation Conditions in Triple Systems: Basic Dye-Metal-Halide (Rhodanide). MARCHENKO.
Α. Κ. ΒΛΒΚΟ AND P . V.
Conditions have been investigated for precipitating triple compounds formed by anion halide and rhodanide zinc and cadmium complexes with methyl violet, Malachite green, methylene blue, rhodamine B, and auramine. The influence of acidity and addendum concentration has been investigated, and the sensitivity of reactions has been estimated. Isolation of Uranium from Sea Waters with Organic Coprecipitants. K. I. KTJZNETSOV AND T . G. AKIMOVA.
A method for concentrating uranium from sea water is based on coprecipita tion of uranium thiocyanate complex with the methyl violet thiocyanate pre cipitate. Coprecipitation of Gallium with Or ganic Coprecipitants. K. I. KTJZNETSOV AND G. V. MYASOEDOVA.
Gallium is concentrated from diluted solutions by coprecipitation with the precipitate of p-dimethylamineazobenzene hydrochloride.
NEWS Coprecipitation of Molybdenum with Organic Coprecipitants. V. I. KTTZNET-
by Use of Francium-212.
SOV AND G . V . MYASOEDOVA.
K H 1 N A AND S . S . PiODIN.
A method for isolating and concentrating molybdenum is based on coprecipitation with the precipitates of methyl violet tannate and thiocyanate. Solubility of Salts in Nonaqueous Solvents with Radioactive Tracers. N.
Francium is rapidly separated from a complex mixture of the products of ura nium fission and splitting. Coprecipita tion, extraction by solvents, and chro matographic separation of francium from alkali and other elements have been studied experimentally. Radioactive Tracers for Checking Methods of Isolation of Niobium. Yu.
A. ISMAII.OV AND V. S. C H E E N Y .
Shows Instantaneous Weight and Rate of
Change
This new laboratory instrument combines the range and accuracy of the Ainsworth Analytical Balance with a continuous record and automatic operation. Records weight changes for long or short periods on a chart 1 1 " wide representing 110 mg. Accuracy and readability are plus or minus 1/10 mg. Capacity 200 grams. Automatically adds or subtracts weights as required to rescale recorder pen. Range of automatically controlled weights is 4 grams. This is 40 chart widths —and the recording is linear all the way. Samples can be placed on the balance pan or suspended in a controlled environment, above or below the balance.
The influence of solvents on the solubility of silver and cesium chlorides as well as silver salts of a number of aliphatic carboxylie acids has been investigated. The relation of the solubility of these compounds to the dielectric constant value of the solvent has been established. Determination of the Solubility of Sparingly Soluble Compounds of Some Radioéléments. D. M . Ziv AND I. A. EFROS.
The solubility of polonium hydroxide lias been determined microchemically. An ultramieromethod for the determination of solubility has been developed. Methods of mixing and determining p H of solutions in microliter volumes are described. Solubility of Sulfides of Some Metals with Radioactive Tracers. Ε. Μ. NANORASHVII.T.
The solubility of the freshly precipi tated ferrous, cobalt, zinc, lead, thallium, and silver sulfides has been determined, depending on the acidity of the medium. The solubility values for ferrous, cobalt, and zinc sulfides at p H < 6 have been established to be almost the same. Composition and Solubility of Zirco nium and Lead Dihalide Hydroxyquinolines. I. M. KORENMAN, A. A. TDMANOT, AND Z. V. KRAINOVA.
The composition of zirconium and lead dichloro-, dibromo-, and diiodohydroxyquinolines has been studied; their solu bility depends on a number of factors. Solubility products have been calculated and analytical applications of the data are considered. Radioactive Isotopes in Spectropho tometry Study of Complex Compounds in Two-Phase Systems. N . P . KOMAR. Radiochemical measurements combined with the determination of molar extinc tion coefficient have been used for study ing complex compounds in two-phase systems. The use of labeled atoms per mits independent determination of dis tribution coefficient and instability con stants of a complex. Colorimetric Determination of Ura nium with Hydrogen Peroxide. A. M.
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GUREVICH, L. D. PREOBRAZHENSKAYA, P . OSICHEVA, AND E . V . KOMAROV.
X.
An optical and potentiomctric study has been made of the formation of col ored uranium compounds with hydrogen peroxide in weakly acid and strongly al kaline mediums. Compound composition, the equilibrium constant of the reaction in a weakly acid medium, and the con stant of the first stage of hydrolysis of an ion causing the coloring in a strongly alkaline medium have been determined.
Analytical
Chemistry
of
Francium
A. K. LAVHU-
I. BYKOVSKAYA.
When niobium is separated from tung sten by means of a magnesium sulfate mixture, up to 15% of niobium remains in the initial material; 7 to 10% is lost during isolation in the presence of tita nium by the Oshman method. Xiobium losses are 5 to 7% when tannin and ascor bic acid are used. Radioactive Tracers Technique for the Control of the Rare Metals Industry. A. A. GRIZIK AND X. I.
MARUXINA.
Methods used in the State Rare Metals Scientific Research Institute for measur ing the activity of solutions, powder samples, and metal bullions are reviewed. Many examples are given of applications of these methods in production of nio bium, vanadium, germanium, and other rare metals. Use of Calcium-45 in Determination of Nonmetal Inclusions in Steel. M. I. T S E K H A N S K Y , N . I. SHTSHKIXA, Κ. Β. KHE'SXOYAROV. AND (!. D. SUSLOPAROV.
By radioactive tracers the degree of contamination of steel with nonmetal inclusions has been determined. Pre vious methods for determining degree of contamination are inaccurate. Application of Chlorine-36 for Quan titative Determination of Hexachlorocyclohexane Isomers in Industrial Hexachlorane.
P. V. ZIMAKOV AND L. A.
KRASNOUSOV. A method for determining hexachlorocyclohexane isomers by Cl3e β-rays has been improved and is appli cable for ordinary mass analyses. Determination of the Effectiveness of Fractionating Gaseous Hydrocarbons by Labeled Atoms. K. I. KARASF.V. With the use of C " the effectiveness of separation by chromatography and low-temperature distillation has been compared for simple and complex mix tures of air, methane, ethane, ethylene, propane, propylene, and butylènes. Radiochemical Analysis of Radiocarbon-Labeled Compounds During Synthesis. I. A. KoRSHUNOV AND N . F. NOVOTOROV.
Methods for measuring C11 radioactivity are based on use of an internal filling counter, scintillation, and micawindow counters. Radioactivity Measurements on Preparations Containing Radiocarbon by Liquid Scintillation Counter. I. A. KORSHI;NOV, R. V. M. GLAZOV.
V.
AMENITSKAYA, AND
Liquid scintillation counters have been successfully applied for measuring activity of C"-labeled organic compounds. The most effective phosphors and solVOL. 3 0 , N O . 3, MARCH 1 9 5 8
•
39 A
NEWS vents have been selected. The apparatus is described. Radiochemical Analysis in Studying Reaction of Benzene Alkylation with Propane-Propylene Fraction of Pyrolysis Gas. I. A. KOBSHUNOV, O. A. KOLMAKOV, N . F . NOVOTOROV, I . S . IZMAILOVA,
N. A. PBSTUNOVIOH, AND V. N. DUBOVSKAYA.
Carbon-14 has been used to study the composition of the product of benzene alkylation with the propane-propylene fraction of pyrolysis gas. Radioactivity was measured by internal filling and mica-window counters.
Analytical Chemistry Division Gains M e m b e r s Membership in the AMERICAN CHEMICAL SOCIETY'S Division of Ana
lytical Chemistry increased from 2300 in 1956 to 2700 in 1957, according to the division's semiannual report. War ren W. Brandt, secretary-treasurer of the division, also reported that the 1957 Directory of Members was sent out in September. The volume, produced by W. C. Ellenbogen, was financed by the
Fisher Scientific Co. Members who have not received a copy may obtain one by writing the secretary at the Department of Chemistry, Purdue Uni versity, Lafayette, Ind. Brandt also made the plea that, in case of a change of member's address, he be notified directly. He pointed out that notifications made to the Wash ington ACS office are not ordinarily passed on to the divisional secretary. The result is that many members each year find themselves not receiving ab stracts and other papers to which they are entitled.
Spectrophotometer Course Planned
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ANALYTICAL CHEMISTRY
Nominations Asked for Wiley A w a r d The Association of Official Agricul tural Chemists is now accepting nom inations for the second annual Harvey W. Wiley Award for Achievement in Analytical Methods. The award, con sisting of $500 in cash, is given for out standing contribution to the develop ment of methods of analysis for foods, drugs, cosmetics, feeds, fertilizers, and pesticides, or for use in general analyt ical chemistry. Nominations must be submitted by April 1, and nominees need not be members of the association. A general statement regarding the award may be obtained from the secretary, William Horwitz, Box 540, Benjamin Franklin Station, Washington 4, D. C.
ACS M a r y l a n d Section Holds M e e t i n g - i n - M i n i a t u r e The Maryland Section of the AMERI CAN CHEMICAL SOCIETY will hold a
meeting-in-miniature at Morgan State College in Baltimore on April 25. Six papers of interest to analytical chem ists are planned for the meeting. These are: "Flame Spectroscopy of Rarer Elements," Frank Huber and R. C. Crippen ; "Improvements on the Model 2000 Jarrell-Ash Microphotometer," S.
NEWS
R. Wiley; "Determination of Small Amounts of Vanadium in Heavy Fuel," D. M. Zall; "X-ray Spectrographs Analysis of Silica and Alumina in Inorganic Glasses," W. A. McLeran, Jr.; "Microdetermination of Ammonia and Its Application to Biological Problems," S. P. Bessman; and "A Micro Method for the Determination of Creatine and Creatinine in Plasma," J. T. Tilden and H. M. Nitowsky.
Determines Weight Size & Shape Of: large molecules, polymers, and biological materials
API Program Announced The preliminary program for the API's Division of Refining 23rd midyear meeting has been announced. The meeting will be held at the Statler Hotel in Los Angeles, Calif., May 12 to 15. Thirteen papers of direct interest to analytical chemists are planned, all to be given in afternoon and evening sessions on April 12. These will cover such topics as computer simulation of laboratory operations, determination of volatile catalyst components, separability of aromatic hydrocarbons, estimation of insoluble material in used lubricating oils, and others. Hotel reservations can be made by addressing the API Housing Bureau, Convention and Visitors Bureau, Los Angeles Chamber of Commerce, 404 South Bixel St., Los Angeles 54, Calif. Further information about the analytical portion of the program may be obtained from B. J. Heinrich, Philips Petroleum Co., Bartlesville, Okla.
SAMA Meets at Palm Springs The Scientific Apparatus Makers Association will hold its 40th annual meeting at El Mirador Hotel in Palm Springs, Calif., April 20 to 24. The five-day meeting will include a group of speakers, plus a series of committee meetings, group discussions, and the association's annual business session. Topics to be discussed by guest speakers include the business outlook, problems of instrument companies, reducing marketing costs, and industrial relations. About 350 instrument company executives are expected to attend the meeting, which will be presided over by R. E. Welch, president of the association.
NEW ABSOLUTE
Light-Scattering
P H O T O M E T E R A rentorfca&iy sensitive, accurate i n i t r a n ^ ^ ; m r n»^-«ealtering studies of compounds with high moiecufai1 «sjflioifr.Vjfa, parttclesiie determinations in the micron and S u i ^ f c J ^ fonge-^-and for recording haze and turbidity in m o v i t ^ streams of $qtjid*. Spedftt WFpftniHem of the tastrammt M u d · tt» feffewttigt a. Measurement of droplet sizes of oeroseJs. b. Blood-specificity studies. c. RadioNon effects on' nucleic acid, proteins, and other biological materials. d. Measurement of minute imperfections m glass and plastic. e. Measures contamination of fuels and hydraulic fluids. f. Measures atmospheric impurities for control purposes. g. Checks, turbidity, of wastes for sewage disposât plants, h. Measures hase in beer and wine. i. Measures transmittance of highly apajque materials such
as dye.
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Amines has just published a new bulletin with complete technical a n d ordering data for the Mjth^Siejftffiqgj.:- Photometer illustrated above. Send for a c o p ^ | % » * # | # f # ! # # ; # * * 9 · . Bulte)tfi·
AI HA To Meet in Atlantic City The 19th annual meeting of the American Industrial Hygiene Association will be held in Atlantic City, N. J., Far further information, circle number 41 A on Readers' Service Card, page 83 A V O L . 3 0 , N O . 3 , MARCH 1 9 5 8
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NEWS April 21 t o 26. Several other indus trial health societies will hold meetings concurrently a n d these, altogether, will constitute t h e 1958 National Industrial H e a l t h Conference. Twelve papers of analytical interest are scheduled for t h e April 24 sessions, with two more y e t t o b e added:
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ANALYTICAL CHEMISTRY
E v a l u a t i o n of M e t h o d s for Deter mination of H a l o g e n a t e d Hydrocar b o n s i n Air. Ε . Ε . Campbell, M . F . Milligan, a n d H . M . Miller. Determination of O z o n e in Air. E. J . Baier a n d S. R . W a t t s . Analytical M e t h o d s for P h e n o l s in Air. R . G. Smith a n d R . E . Barrow. Field T y p e Colorimetric Testers for Gases and Particulate Matter. P . W . McConnaughey. N e w D e v e l o p m e n t s in O x y g e n D e ficiency T e s t i n g . M . G. Jacobson a n d N. W. Hartz. Colorimetric Determination of B o r o n Hydrides b y M e a n s of P h o s phomolybdic Acid. W . H . HiU, J. M . Merrill, R. H . Larsen, D . L. Hill, a n d J. F . Heacock. Determination of Thallium in Urine and Air. E . E . Campbell, M . F . Milligan, a n d J . A. Lindsey. Determination of T h o r i u m i n Urine and Air. J o h n Harley. Determination of Arsenic in U r i n e and Air. H . H . Schrenk, et al. Determination of Fluoride i n Blood. W . W . Melvin, David Yeager, and Jacob Cholak. Determination of Free Silica in F i n e D u s t . N . A. Talvitie. D e s t r u c t i o n of Animal and V e g e table T i s s u e b y Combustion in t h e Parr O x y g e n B o m b . Jack Seals, W . H . Hill, a n d E . C. Montiegel. Advance registration can be o b tained b y mailing a $3.00 fee t o t h e Industrial Health Conference Registra tion, Room 1300, 28 E . Jackson Blvd., Chicago 4, 111.
Industrial Waste Confer ence To Be Held T h e 13th P u r d u e Industrial Waste Conference will be held a t t h e P u r d u e Memorial Union Building a t Lafayette, Ind., M a y 5 to 7. About 50 papers a r e scheduled on topics dealing with in dustrial wastes a n d their t r e a t m e n t a n d control. Hotel reservations for t h e meeting m a y be made with t h e P u r d u e Union Club, Fowler Hotel, Cedar Crest Hotel, Morris B r y a n t Hotel, or Devon Plaza Motel. Additional information about t h e program a n d registration blanks m a y
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î Edward Wichers is appointed National Bureau of Standards' associate director for chemistry. A native of Michigan, Wichers received his doctorate degree from the University of Illinois in 1917. H e is president o f the inorganic chemistry section of IUPAC, and past president of the Chemical Society of Washington. He has also held several posts in the American Chemical Society.
be obtained from D o n E . Bloodgood, School of Civil Engineering, P u r d u e University, Lafayette, Indiana.
Gordon Research Conferences Announced T h e Gordon Research Conferences for 1958 will be held from J u n e 9 t o August 29 a t Colby Junior College, N e w H a m p t o n School, a n d Kimball Union Academy, all in New Hampshire. T h e conference on analytical chemist r y will be held a t t h e N e w H a m p t o n School, N e w H a m p t o n , Ν . Η., August 11 t o 15. Attendance a t each conference is limited t o 100 persons. Applications and requests for additional information should be addressed t o W . George P a r k s , director, D e p a r t m e n t of Chem istry, University of Rhode Island, Kingston, R . I . After June 9, mail should be addressed t o Colby Junior College, N e w London, Ν . Η . Program for t h e conference on ana lytical chemistry, chairmaned b y Louis Gordon, follows: Chelometric Analysis. C. N . Reilley. Thermogravimetry. E . J. Griffin.
NEWS
NEW CATALOG
Progress Report on Radio Chemistry in Inorganic Analysis. H. W. Kirby. Infrared Analysis of Solids. G. Duyckaerts. Nuclear Magnetic Resonance. Har lan Foster. Optical Rotatory Dispersion. W. Klyne. Analysis of Reaction Intermediates. E. W. Abrahamson. Enzymatic Reactions. J. B. Neilands.
Industry Changes Announced
Summer Symposium Being Organized Plans for the 1958 summer sym posium to be sponsored by ACS' Divi sion of Analytical Chemistry and ANA LYTICAL CHEMISTRY are nearing com
b r i n g s you up t o d a t e on . . . Automation Process Controls Consulting Decontamination Service Dosimeters Film Badge Service Flow Counters Geiger Tubes and Accessories Handling and Shielding Equipment Liquid Level Gauges Medical Sources Radiation Research Equipment Radiation Thickness Gauges Radiography Equipment Ratemeters Reactor Monitoring Equipment Reactor Services Reference Sources Sample Holders and Changers Sample Preparation Equipment Scalers and Accessories Scintillation Equipment Shipping and Storage Containers Survey Meters Tagged Compounds Training Courses Write for your free copy today.
Tracerlab Dept. C, 1 0 0 3 Trapelo Road, v/altham s a , Mass. 2030 Wright Avenue, Richmond, Calif. Offices in principal cities throughout the world
pletion. Scheduled for the General Electric Laboratories at Schenectady, Ν. Υ., June 19 to 21, the symposium is entitled "Analytical Chemistry in Fused Media." Thus far, 11 papers are scheduled for the meeting, with several more to be added to the list during the present month. The completed pro gram will appear in an early future issue of ANALYTICAL CHEMISTRY.
technique of infrared spectroscopy and the other will deal with applications. Application forms and more infor mation may be obtained from James M. Austin, Director of the Summer Session, Room 7-103, Massachusetts Institute of Technology, Cambridge 39, Mass.
Nor
man H. Nachtrieb and Dieter M. Gruen are cochairmen of the symposium pro gram committee.
Industrial Spectrography at Boston College Boston College announces that a two-week intensive course in modern industrial spectrography will be given at Chestnut Hill, Boston, Mass., July 21 to August 1. It is designed especially for chemists and physicists from in dustry, and it will concentrate on the techniques of emission spectroscopy as an analytical tool. Additional information may be ob tained from Professor James J. Devlin, S.J., Physics Department, Boston Col lege, Chestnut Hill 67, Mass.
MIT Offers Infrared Spectroscopy Course An intensive two-part program in infrared spectroscopy will be given at Massachusetts Institute of Technology from August 4 to 15. The program will be an introduction to infrared in strumentation and laboratory methods, and is also designed for those inter ested in infrared spectra in the solu tion of chemical problems. It will consist of two integrated one-week courses. One of these will be on the
Applied Research Laboratories has opened an expanded demonstration laboratory at Dearborn, Mich. The laboratory is to be a center where sample tests may be run on a wide variety of instruments to help in com paring and selecting. Instruments shown will include photographic spec trographs, direct-reading Quantometers, Quantographs, x-ray fluorescence instruments, multisource units, and in tegrated accessories. ARL will also use the center to supplement the work of its development laboratory at Glendale, Calif. Isotope Chemical Co. will be the name for Nuclear Chemical Co., deal ers in labeled compounds and specially synthesized radiochemicals. The com pany, located at Chicago, has just es tablished a radioassay service, and can perform radioanalyses of pure chemi cals, vegetable or animal matter, urine, blood, and other substances. Fisher Scientific Co. expects to open a new plant at Philadelphia in September. Specific site is a four-acre tract in King of Prussia, a Philadelphia suburb. A brick-and-aluminum build ing will contain a demonstration labo ratory, instrument repair shops, order handling and technical service facili ties, and a warehouse with about 34,000 square feet of floor space. This brings the number of Fisher branch plants to nine. C o n s o l i d a t e d Electrodynamics Corp. and Cenco Instruments Corp. are planning to combine. Exact legal form of the combination is not yet known. But tentatively they've agreed that it will be on an exchange ratio of three shares of Cenco stock for one share of Consolidated. Completion of arrangements is subject to usual audit and legal investigations, plus approval of stockholders and government agen cies. Ramo-Wooldridge Corp., Los An geles, and Thompson Products, Inc., Cleveland, announced jointly today formation of a new subsidiary corpora-
Circle No. 46 A on Readers' Service Card, page 83 A 46
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ANALYTICAL CHEMISTRY For further information, circle number 47 A on Readers' Service Card, page 83 A
NEWS tion, to be known as Thompson-RamoWooldridge Products, Inc. The new company will concentrate its efforts on industrial process control, and will market as its first major prod uct the RW-300 digital process control computer. Thompson-Ramo-Wooldridge Products, Inc., offices will be located at the Ramo-Wooldridge Center near Los Angeles International Air port. The development of new prod ucts in addition to the RW-300 in the field of industrial process control will be undertaken for the new corporation by The Ramo-Wooldridge Corp., which will also manufacture the new corpora tion's equipment in its newly activated manufacturing facilities in Denver, Colo.
16// wanted a mixer you could f o r g e t ! You didn't need anything fancy. One speed would do. Just a good, simple, sturdy lab mixer. But it had to run—24 hours a day, seven days a week, if need be—year after year, with no maintenance. That's why we fashioned this LIGHTNIN Model L. Stacked it solid, like a production machine—though it weighs only eight pounds. Gave it a 1/30-HP fan-cooled motor that's safe with inflammables, spin ning at a quiet-and-steady 1600 RPM. And run it does! We've sold thousands of these mixers—but we hardly ever have to sell replacement parts for them! You get versatility with Model L, too. Your choice of mixing action—just by re placing the standard 2-inch propeller with a full selection of other types. Propeller and shaft come in 304 stain less steel or Monel. Your choice, too, of rugged bronze tank clamp or ring-stand clamp. Fully guaranteed. Order from your labora tory supply house, or write us. Specify LIGHTNIN M o d e l L M i x e r : For 110-volt 60-cycle 1 -phase $47.00 For 220-volt 60-cycle 1-phase $51.00 Many other precision-built LIGHTNINs for laboratory mixing. Electric or air driven units; single or variable speeds; explosion-proof motors; gear or direct drive; accessories. To get new illus trated Bulletin B-112, just check the reader service card now.
Lightnin Mixers MIXING EQUIPMENT Co., Inc. 160-c Mt. Read Blvd., Rochester Ι Ι , Ν . Υ . In Canada: GreeyMixing Equipment, Ltd., TOO Miranda Ave., Toronto Ί0, Ont. Circle No. 48 A on Readers' Service Card, page 83 A 48
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ANALYTICAL CHEMISTRY
Analytic Systems Co., a division of Research Instrument Corp., 980 North Fair Oaks Ave., Pasadena, has com pleted arrangements with Applied Physics Corp., Pasadena, Calif., to manufacture and sell infrared and ul traviolet process stream analyzers for merly manufactured by Applied Phys ics Corp. According to W. E. Dixon, Division Manager, Analytic Systems Co. will provide service and parts for the instruments already in service and will give technical assistance in applica tion of new instruments. In addition to ultraviolet and infrared analyzers, Analytic Systems Co. also provides other process stream analyzers, includ ing sample handling equipment and mounting accessories. Keithly Instruments, Inc., Cleve land, announce the formation of its new Quality Control Department. The com pany manufactures a line of electrom eters, micromicroammeters, and megohmmeters for the electronic and nuc lear fields. Gordon and Campbell, Consulting Chemists is the name of a new research and development consulting laboratory established at 12 Brookfield Way, Morristown, N. J. The firm, started by Saul Gordon and Clement Campbell, will specialize in the application of thermoanalytical research techniques and will engage in the development of laboratory and control instrumentation. Facilities are available for studies in foods, insecticides, ceramics, textiles, petroleum, and other fields of chemistry.
Soviet Translations Expanded The Soviet Journal of Analytical Chemistry is one of the 20 Soviet sci entific and technical journals to be translated in the United States. Con sultants Bureau, Inc., New York, an nounces that it has received exclusive
world wide rights to translate and pub lish complete English language transla tions of Soviet journals covering such fields as chemistry, physics, electronics, metallurgy and biology and medicine. The agreement was made with Mezhdunarodnaya Kniga, Soviet publica tions export agency. Consultants, Bureau, 227 West 17th St., New York 11, has been translating most of these journals on a yearly sub scription basis.
NEW "BOOKS U. S. Government Publications Chemical Analysis of Surfaces by Nuclear Methods. PB 131298. S. Rubin, T. 0. Passell, and L. E. Bailey, Stanford Research Institute for Office of Ordnance Research, TJ. S. Army. Sept. 1956. 33 pages. $1.00. Final report describes application of nuclear scattering and nuclear reactions induced by high energy protons and douterons to the analysis of solid sur faces. The methods are applicable to detection of all elements to a depth of several microns, with sensitivities in the range of 10~8 to 10^6 gm./cm. 2 . Inert-Atmosphere Chamber for Chemical Operations. PB 131067. D. L. Herring, TJ. S. Naval Ordnance Laboratory. Jan. 1956. 28 pages. 75 cents. An inert-atmosphere chamber ("dry box") for handling nonvolatile chemi cals sensitive to moisture and/or oxy gen used in research on modified inor ganic polymers. The assembly is a closed system consisting of a chamber through which dry argon gas circulates from an attached gas purification train and auxiliary equipment. An ante chamber provides for insertion of re agents and equipment so that only traces of oxygen and water are per mitted to enter. Infrared Absorption Studies of Some Halogenated Acetic Acids. PB
131035. R. E. Kagarise, Naval Re search Laboratory. Aug. 1957. 50 pages. $1.25. Infrared absorption of eight halo genated acetic acids was studied in the 2- to 15-micron region for the liquid and crystalline states. Observed data for the liquids were interpreted in terms of dimeric molecules, and assignments of the prominent bands were made.
