Books for propoxyphene hydrochloride, al though secobarbital has 81 and phenoxymethyl penicillin almost 150. The choice of drugs presented is heterogeneous and without apparent plan. Narcotics to antibiotics is cer tainly variety, but with such a breadth many important and fre quently encountered drugs and drug classes inevitably are missing. Only one barbiturate! Future volumes de
voted to major drug types such as phenothiazines, phenethylamine de rivatives, and hydantoins would find a logical place on the chemist's shelf and attract the specialist. The books, in toto, are an example of the lamentable dearth of reliable and proven information concerning some aspects of drug analysis. What of extraction techniques and efficien cy data? What of human toxicology? It is easy to carp, and that is not the intention—rather to reveal, as the books do, the inadequacy of knowl edge implicit in these solid profiles. New collaborators, comment, and
The "Classic" for laboratory conductivity measurements... By far the most widely used laboratory conductivity bridge ever offered. Here are a few of the reasons why:
Model RC-16B2
• Wide range — simultaneous readings of conductivity from 0.4 μίτιηοβ to 5,000,000 Mmhos, and resistance from 0.2 ohm to 2,500,000 ohms. • Uniform accuracy — accurate to 1 % of reading over entire usable range. • High sensitivity — at least 0.33% of reading over entire usable range. /~ ~"""~-~-^ • Test frequencies — internally supplied; / · i ^ ~~ -~_. either line frequency or 1000 Hz, front/ '"* " * i ; ; ^ 0 "~^~-~^ panel selected. / '°°""«ί>"'«„ .... " " ^ f • Convenient, straight-forward operation / / — easy b a l a n c i n g w i t h no fussy / / controls. ' '
Send for your free catalog today. Catalog 34R-1 tells the whole story . . . and describes many other elec trolytic conductivity instruments and cells as well.
Beckman
I N S T R U M E N T S , INC. CEDAR GROVE OPERATIONS 89 COMMERCE ROAD CEDAR GROVE, NEW JERSEY · 07009 (201) 239-6200 · TWX- 710-994-5781
HELPING SCIENCE AND INDUSTRY IMPROVE THE QUALITY OF LIFE
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CIRCLE 32 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 45, NO. 12, OCTOBER 1973
counsel are welcomed and needed to correct the minor accuracy and typographical sins of commission and to continue this excellent work by re pairing those of omission. The editor hopes that these volumes will con tribute to better understanding of drug characteristics. They will, and surely even at the unhappy price of $33, find a huge, waiting audience.
New Books Chromatographic Systems: Mainte nance and Troubleshooting. John Q. Walker, Minor T. Jackson, Jr., and James B. Maynard. ix + 289 pages. Academic Press, Inc., 111 Fifth Ave., New York, N.Y. 10003. 1972. $8.95
The stated purpose of this book is to provide a clear and concise guide for chromatographic maintenance— troubleshooting and repair procedures which can be utilized by both inexpe rienced and experienced chemists and technicians to reduce instrument down-time. It attempts to bridge the gap between the chromatographer and the service engineer. Both liquid and gas chromatography are covered. There seems to have been some prob lem in proofreading the final copy be cause the book includes an errata in sert that contains 53 corrections.
Chemical Technicians' Ready Refer ence Handbook. Gershon J. Shugar, Ronald A. Shugar, and Lawrence Bauman. xi + 463 pages. McGrawHill Book Co., 1221 Avenue of the Americas, New York, N.Y. 10020. 1973. $19.50
This handbook is designed to pro vide anyone with every single step to be followed when performing normal laboratory procedures. Included are details on what equipment is needed, the sequential steps to be taken, and the collection of data and any neces sary calculations. Other sections in clude refresher mathematical proce dures, a glossary of technical terms, useful reference and conversion ta bles, and symbols and abbreviations commonly encountered.
Industrial Source Sampling. David L. Brenchley, C. David Turley, and Ray mond F. Yarmac. xxii + 484 pages. Ann Arbor Science Publishers, Inc., P.O. Box 1425, Ann Arbor, Mich. 48106. 1973. $18
This book focuses on the practical aspects of source sampling, detailing the equipment and methods required
Pesticides Identification at the Residue Level
Bin ADVANCES IN CHEMISTRY SERIES No. 104
Ten papers from a symposium by the Division of Pesticide Chemistry of the American Chemical Society chaired by Francis J. Biros. Pesticides—key to abundance or the beginning of the e n d ? W h e t h e r their use leads to more abundant produc tion or to a "silent spring" could well depend on the development and use of analytical techniques. Residues of pesticides and their derivatives have been reported throughout the world and blamed for endangering count less forms of life. W h i c h is actually at f a u l t — t h e pesticides or the analyt ical techniques? Some of the topics examined are • gas—liquid chromatographic de tectors • infrared and ultraviolet spectro photometry • thin-layer and paper chromatog raphy • mass spectrometry • neutron activation analysis • biological assay methods Here is a guide for future research and development in the battle against one type of environmental pollution. 182 pages w i t h index. Cloth bound (1971) $8.50 Postpaid in U.S. and Canada; plus 40 cents elsewhere. Set of L.C. cards w i t h library orders upon request. Order from : Special Issues Sales A m e r i c a n C h e m i c a l Society 1 1 5 5 1 6 t h St., N . W . Washington, D.C. 2 0 0 3 6
to comply with state and federal laws. Emphasis is placed on the new performance procedures prescribed by the U.S. Environmental Protection Agency. Particulate matter, sulfur oxides, sulfuric acid mist, and oxides of nitrogen are covered in this work. Specific areas treated are reasons for sampling, problems involved, meth odology, sampling train components, conducting tests, preparation of re agents, calibration of field equip ment, analytical procedures, and handling and evaluation of data.
Continuing Series Atomic Absorption Spectrometry in Geology. Second edition. Ernest E. Angino and Gale K. Billings, χ + 191 pages. American Elsevier Publishing Co., Inc., 52 Vanderbilt Ave., New York, N.Y. 10017. 1973. $13.50 This book is Vol 7 of the series "Methods in Geochemistry and Geo physics." The purpose of this volume is to compile the examples of atomic absorption analytical methods for geological material, which at present are scattered in a variety of journals not usually studied by geologists. A brief description of theory and instru mentation is presented, but the em phasis is on details of sample prepa ration and analytical methods for most geological materials.
Encyclopedia of Industrial Chemical Analysis, Vol 17. Foster Dee Snell and Leslie S. Ettre, Eds. xii + 644 pages. John Wiley and Sons, Inc., 605 Third Ave., New York, N.Y. 10016. 1973. $45 ($35 by subscrip tion) This new volume covers topics from phenols to sensory testing materials.
Analysis Instrumentation, Vol 1 1 . A. H. Keyser, A. M. Bartz, and F. Combs, Eds. 200 pages. Instrument Society of America, 400 Stanwix St., Pittsburgh, Pa. 15222. 1973. Paperbound. $15 (In Europe, Pertel Ltd., Chancery Lane, London EC4, En gland; in Japan, Taisay Koheki Co. Ltd., Higashinakano 1-46-19, Nakano-ku, Tokyo, Japan) Comprised of the proceedings of the 19th Annual ISA Analysis Instru mentation Symposium conducted in St. Louis, Mo., April 1973, this vol ume contains 29 papers on methods of laboratory and process analysis; sampling, calibration, and computer systems; and environmental analyti cal instrumentation.
Want to automatically determine melting and boiling points without any possibility of misinterpreting results? Determine exact melting ranges of polymer films and fibers, liquid crystal preparations, and submicrogram quantities of organic compounds using thermal microscopy? Obtain digital dropping points of lubricants, food fats, paraffins and waxes? Softening points of fats, coal tar pitches, polymers and resins? The new generation of instruments, the modular Mettler FP system, will do them all faster, easier, more accurately. There's a separate Mettler FP furnace for each application. All provide high-precision, electronically controlled, linear (to ± 0 . 1 = C) heating and cooling with extremely fast response over the—20 to + 3 0 0 ° C range. Temperatures at which significant thermal events occur are digitally displayed. Accurate, reliable platinum resistance sensors, closely matched by Mettler, enable you to choose the furnace which precisely suits your needs. For detailed information, circle the number.
CIRCLE 154 ON READER SERVICE CARD A N A L Y T I C A L CHEMISTRY, VOL. 45, NO. 12, OCTOBER 1973 · 1015 A
