Less than
NEWS
0.007% Ash-
Method for Continuous Subatmospheric Sampling for Process Monitoring Mass
for Highest Accuracy
Spectrometer. ESCHEB.
New Synthetic Gas Blending and Mass Spectrometer Introduction Systems. J. W. MCQUAID, R. J. HARRIS AND Ε. Μ. CHARLET.
left: Platinum crucible, with 20 gr. S&S AshFree Filter Paper below: Crucible after completed incineration
Vacuum Lock for Mass Spectrometer Solids Entry System. R. H. ROBERTS AND J. V. WALSH.
The 120° C. Heated Inlet System for Mass Spectrometer.
R. C. WILKERSON, R.
M.
G U E D I N , AND E . S . R A M E Y .
Pumping Action of Ionization Gage. D. F . SWINEHART.
Fabrication of All-Glass Leaks.
W. D.
CLARK.
Thursday Morning Section 7. F . P . HOCHGESANG, Presiding Anomalous Behavior of Certain Low Molecular Weight Mercaptans in Mass Spectrometer.
ANALYST'S CALENDAR
H. LANDSBERG AND Ε. Ε.
Metropolitan Microchemical Society. American Museum of Natural His tory, New York, Ν. Υ., April 21. American Association of Spectrographers. 6th Annual Conference, Chicago, 111., May 6. Society for Applied Spectroscopy. An nua] meeting, New York, Ν. Υ., May 12 and 13. Sixth Symposium on Microscopy. Ar mour Research Foundation, Sheraton Hotel, Chicago, 111., June 16 to 18. Eighth Annual Analytical Symposium. Syracuse University, Syracuse, Ν. Υ. June 17 and 18. American Chemical Society. 128th meet ing, Minneapolis, Minn., September 11 to 16.
H. D. LEROSEN.
Analysis of Dilute Aqueous Solutions. J. H. JONES AND L. E. BREEN, J R .
Mass Spectrometer Analysis of Halogenated Compounds. F. W. MCLAFFERTY. Investigation of Oxidation of Carbon Monoxide on Oxide Catalysts, Using O18 as Tracer.
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E. R. S. WINTER.
Technique for Trace Water Determination with Process Monitoring Mass Spectrometer. Application of Absorption Fractionation to Mass Spectrometer Analysis of Gaseous
Section
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Third Annual Anachem Conference
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Depl. AC-45 Keene, New Hampshire Gentlemen:
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Please send me, free, an S&S Analytical Filter Paper Sampler.
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Mixtures.
30 A
C. M. DREW.
Technique of Analyzing Volatile Liquids by Mass Spectrometry. J. F. HICKERSON AND Ε. Β. HARRIS.
Outgassing of Glass. B. J. TODD. Mass Spectra of Trimethylsilyl Deriva tives. A. G. SHARKEY, R. A. FRIEDEL, AND S. H. LANGER.
Mass Spectra of Amines.
C. M. JUDSON
AND R . J . FRANCEL.
Mass Spectrometric Analysis of Gaseous Combustion Products from Delay Powders. P . ROCHLIN.
Metallurgical Analysis. JOHN L. HAGUE Emission Spectroscopy. CYRUS FELDMAN
Problems in Water Analysis.
MICHAEL
TARAS
Thursday Afternoon 8. H . F . WILEY,
Presiding
Molecular Structure and Spectroscopy The Symposium on Molecular Struc ture and Spectroscopy, sponsored by the Graduate School and the Depart ment of Physics and Astronomy of the Ohio State University, will be held June 13 to 17. Abstracts of communications should be submitted in duplicate to Harald H. Nielsen, chairman, Depart ment of Physics and Astronomy, Ohio State University, Columbus 10, Ohio. The following tentative program has been arranged.
Sequential Digitizing of Mass Spectra.
June 13
A. KAY AND W. H. KING, J R .
Application of Mechanical Analog Com puter to RF Mass Spectrometer Tube. W. W. CANNON AND M. K. TESTERMANN.
Use of High Speed Digital Computer for Mass Spectrometer Calculation. W. DOHERTY, R. A. BROWN, AND R. W. M E L POLDER.
Electronic Computer Techniques for Mass Spectrometer Matrices. A. OPLER. Mechanical Peak Reading Device for Mass Spectra. L. MIKKELSEN.
Clinical Analysis. BENNIE ΖΑΚ Studies of Precipitation Processes. Problems in Organic
plexes.
LESLIE E. ORGEL, University of
Chicago. E l e c t r o n i c B a n d Spectroscopy— Experimental Spectroscopic and Photochemical Studies on Complex Molecules in Rigid Solvents. H. LINSCHITZ, University of Syracuse. Molecular Constants and Astrophysics. PHILIP C. KEENAN, Perkins
Observatory,
J u n e 14 Radio-frequency Spectroscopy Electronic Paramagnetic Resonance. S. I. WEISSMAN, Washington University. Radio-frequency Spectra of Crystals. DUDLEY WILLIAMS, Ohio State University.
R a m a n Spectroscopy High-Resolution Raman Spectroscopy of Gases.
ROB
ERT B. FISCHER K. G. STONE
T h e o r y of E l e c t r o n i c B a n d S p e c t r a Intermolecular Forces. J. O. HIRSCHFELDER, LTniversity of Wisconsin. Spectra of Some Transition-Metal Com
Columbus, Ohio.
T h e Third A n n u a l Anachem Con ference, sponsored b y t h e Association of Analytical Chemists, Detroit, Mich., will be held, M a y 2. T h e morning ses sion will be held in Engineering Society of D e t r o i t Auditorium a n d t h e after noon session will b e held in Science Hall of nearby W a y n e University.
Some Circle No. 30 A on Readers' Service Card, page 47 A
ANNE L. CONRAD
Use of Anion Exchange Separations in
H. LANDSBERG AND S. A. DAWKINS.
For many years S&S Ash-Free Analyt ical Filter Papers have been known for their extremely low ash content. They have been the choice of chem ists who must have the most precise working tools. To our knowledge, there is no filter paper with lower ash content on the market. In fact, ash content of S&S Quantitative Papers is considerably lower than all other papers we have tested-less than 0.007%. Ask your laboratory supply house for S&S Analytical Filter Papers—the finest, most precise filter paper you can specify. Yet S&S quality costs no more. If you would like to receive a free S&S Filter Paper Sampler, made up of many grades, just mail the coupon below.
Carl Schleicher & Schuell Co.
Determination of Antioxidants in Gaso line.
Analysis.
BORIS P. STOICHEFF, National Re
search Council of Canada. Raman Spectroscopy in India during 25 Years. P. G. PURANIK, Osmanian Univer sity, Hyderabad, India. ANALYTICAL
CHEMISTRY
