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ANALYTICAL Volume 22, No. 7
CHEMISTRY
Copyright 1950 by American Chemical Society
Issued July 18,1950
EDITOR: WALTER J. MURPHY Executive Editor: JAMES M. CROWE
Associate Editor: LAWRENCE T. HALLETT
Assistant to Editor: N. A . PARKINSON
Contributing Editor: R. H. MÜLLER
Assistant Editors
Editorial Assistants
Manuscript Editing: G. GLADYS GORDON Manuscript Reviewing: STELLA ANDERSON Make-up: CHARLOTTE C. SAYRE
DOROTHY M. ADAMS
KATHERINE I. BIGGS
RUTH CORNETTE 849
EDITORIAL
Advisory Board Κ. Κ. CHEN
R. H. MÜLLER
P. J. ELVING
B. L. OSER
W. A. KIRKLIN
C. J. RODDEN
EILEEN F. GILLESPIE
I. M.
ALBERTA L. KELVIE
H. A. LAITINEN
KOLTHOFF
W. J. SWEENEY
BETTY V. KIEFFER
M. G. MELLON
EDWARD WICHERS
J. W. STILLMAN
Simultaneous Determination of Ethylene and Propylene Chlorohydrlns . . . W . A . Cannon 928
Separation of Cracked Gasolines by Chromatographic Adsorption D. F. Fink, R. W . Lewis, and F. T. Weiss Adsorbent Characteristics and Regeneration Techniques
Determination of Surface-Active Substances in Refined Sugar . Ivan Vavruch
930
Determination of Cerium
A . J. Freedman and D. N . Hume
932
Color Reaction between Beryllium and Aurfn Tricarboxylic Acid . . . . G. E. Kosel and W . F. Neuman
936
864
Instrumental Improvements for Microdetermination of Protein-Bound Iodine In Blood A . L. Chaney
939
Separation of Nitrogen Compound· by Adsorption from Shale OH . . . J. R. Smith, C. R. Smith, Jr., and G. U . Dinneen 867
Determination of Milligram Quantities of Vanadium In Presence of Uranium R. H. Gaie and Eve Mosher
942
850
Factors Affecting Efficiency of Separation
858
Adsorption Symposium Chromatographic Analysis of Gas O I U I w Hydrocarbon Types . . . . . R. J. Clerc, C. B. Kincannon, and T. P. Wier, Jr.
Adsorption Analysis by Displacement Techniques . . . . . . . . . . G. U. Dineen, C. J. Thompson, J. R. Smith, and J. S. Ball Evaluating Petroleum Residua and Lubricating O i l Distillates
Analysis of Natural Gas
871
Coulometric Titrations with Chlorine
876
L. C. W . Baker and T. P. McCutcheon Nomograph for Thermometer Temperature Correction . P.J.Cole
Martin Shepherd 881
Determination of Sulfur Dioxide in Presence of Sulfur Trloxlde Sydney Atkin Purification of Nlnhydrin by Crystallization P. B. Hamilton and P. J. Ortiz
948
KJeldahl Microdetermination . . . . R. M . Silverstein and R. Perthel, Jr.
949
Martin Shepherd 885 . . .
P. S. Farrlnston and Ε. Η. Swift
Use of Physical Constants In Analysis Ε. Η. Gilmore, Marie Menaul, and V . Schneider Coulometric Titration· with Electrically Generated Ferrous Ion W . D. Cooke and Ν . Η. Furman
889
B. J. Thornton and J. C. Speck, Jr.
892
947
B. J. White, N . F. Witt, J. A . Biles, and C. F. Poe 950 Test for Sediment in Fuel O i l by Extraction
B.E.Jackson
952
899
Protective Colloids in Volumetric Determination of Chloride Ion . . . . R. F. Stelzer/E. S. Dillon, and W. C. Vosbursh Photometric Method for Estimation of Minute Amounts of Mercury . . . C. W . Zuehlke and A . E. Ballard
952
R. G. Russell 904
Theimomagnetic Determination of Hagg Carbide in Used Iron Fiteher-Troptch Catalysts L. J. E. Hofer and E. M . Cohn 907 Titration of Nitric Acid in Solutions of Aluminum Nitrate W. J. Blaedel and J. J . Panos 910 Useful Relations for Countcrcurrent Distribution Computation» P. L. Nichols, Jr. 915 Rapid Methods for Determining Fluoride in Waters ,
946
896
. . A . A . Forist and J. C. Speck, Jr. 902
Spectrochemieal Analysis of Brine
944
Optlcal-Crystallographlc Identification of Sulfanilamide
Fluoromettic Determination of Pyruvaldehyde
Fluoromettic Determination ol Acetol
NOTES O N A N A L Y T I C A L PROCEDURES Separation and Determination of Cobalt in Présence of Nonvolatile Radicals
N . W. Furby
Analysis of Carbureted Water Gas by Volumetric Chemical Methods and by Mass Spectrometer
MICROCHEMISTRY
W . E . Thrun 918
Punched Card Catalog of Mass Spectra Useful in Qualitative Analysis . . . P. D. Zemany 920 Identification of Esters of Monobasic Acids by Use of Ethanolamlne . . . . W. H. Rauscher and D. L. MacPeek 923 Determination of Oxygen in Metal Oxides and Sulfides by Reaction with Sulfur Vapor F. T. Eggertsen and R. M . Roberts 924 Determination of Small Amounts of Silicon In Cathode Nickel
G. V. Potter 927
The American Chemical Society assumes no responsibility for the statements and opinions advanced by contributors to its publications. Views expressed in the editorials are those of the editors and do not necessarily represent the official position of the American Chemical Society. Published by the American Chemical Society, from 20th and Northampton Sts., Easton, Pa. Executive Offices, Editorial Headquarters, arid Circulation Department, 1155 Sixteenth St., N . W., Washington 6, D. C. Advertising Office: 332 West 42nd St., N e w York 18, Ν . Υ. Branch Editorial Offices: Chicago 4, I I I . , Room 819, 25 East Jackson Blvd., Houston 2, Tex., 424 West Bldg.; N e w York 17, Ν . Υ., 60 East 42nd St.; San Francisco 2, Calif., Room 454, 760 Market St. Entered as second-class matter at the Post Office at Easton, Pa., U.S.A., February 18, 1948, under the A c t of March 3, 1879, as 12 times a year monthly on the 15th. Acceptance for mailing at special rate of postage provided for in Section 1103, A c t of O c t . 3, 1917, authorized July
953
Society for Applied Spectroscopy
956
Symposium on Thin Films
958
Corrections CRYSTALLOGRAPHY D A T A CORRESPONDENCE
945, 951 W . C. McCrone
954 955
BOOK REVIEWS
956
THE ANALYST'S CALENDAR
959
AIDS FOR THE A N A L Y S T
960
THE ANALYST'S C O L U M N
9 A
INSTRUMENTATION
R. H. Muller 15 A
NEW PRODUCTS FOR ANALYSTS
19 A
MANUFACTURERS' LITERATURE
23 A
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