analytical chemistry - ACS Publications - American Chemical Society

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ANALYTICAL CHEMISTRY Volume 23, No. 10

Executive Editor: JAMES M . CROWE Assistant to Editor: N . A . PARKINSON Associate

Editors

G. GLADYS GORDON STELLA ANDERSON CHARLOTTE C. SAYRE

Copyright 1951 by American Chemical Society EDITOR: WALTER J. MURPHY Associate Editor: LAWRENCE T. HALLETT Contributing Editor: R. H. MüLLER Editorial Assistants KATHERINE I. BIGGS MARY R. CARLS

RUTH CORNETTE EILEEN G. HOFFEN

EDITORIALS

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Symposium on Analytical Research in Petroleum Industry Quenched Electrode Procedure in Spectrographic Analysis as Applied to New Detergent-Type Oils R. O . Clark et al. Spectrographs Determination of Metal Contaminants in Cracking Catalyst E. L. Gunn Spectroscopic Determination oF Vanadium in Residual Fuel Oils . . . . J . W . Anderson and H . K. Hughes Determination of Iron in Used Lubricating Oils by Spectrochemical Analysts John Hansen, Paul Skiba, and C. R. Hodgkins Spectrographic Analysis of New and Used Lubricating Oils C. M . Gambrill, A . G . Gassmann, and W . R. O ' N e i l l Testing Used Lubricating Oils for n-Pentane- and Benzene-lnsolubles . . J. S. Wiberley, R. K. Siegfriedt, and L. J . DiPaola Determination of O i l in Refinery Waste Waters . . . A . F. S. Musante Determination of Total AIkyI Benzenes in Selected Crude Fractions . . . J . F. Kinder Polarographic Determination of Dissolved Oxygen in Petroleum Fractions M . E. Hall Infrared Spectrophotometric Determination of O i l and Phenols in Water R. G . Simard, Ichiro Hasegawa, William Bandaruk, and C. E. Headington Formation of Engine-Deposit Compounds by Solid-State Reactions . . . F. W. Lamb and L. M . Niebylski Modern Analytical Distillation of Crude Petroleum J . A . Lockwood, R. L. Le Tourneau, Robert Matteson, and Frank Sipos Direct Determination of Oxygen in Organic Compounds Joseph Holowchok and G . E. C. Wear Determination of Oxygen in Organic Materials by Modified Sch"tzeUnterzaucher Method Morris Dundy and Ervin Stehr

1348 1354 1358 1362 1365 1369 1374 1379 1382 1384 1388 1398 1404 1408

(End of Symposium) New Codes for Hollerith-Type Punched Cards L. E. Kuentzel Spectrometry Analysis Employing Punch Card Calculators W . H. King, Jr., and William Priestley, Jr. Improved Method for Determination of Oxygen V . A . Campanile, J . H . Badley, E. D. Peters, E. J . Agazzi, and F. R. Brooks Portable Meter for Determining Dissolved Oxygen for Use with Oil-Field Brines G . A . Marsh Isolation, Identification, and Estimation of Gaseous Pollutants of Air . . . . Martin Shepherd, S. M . Rock, Royce Howard, and John Stormes Autoradiographic Technique with Carbon 14 in Rubber A . D. Kirshenbaum, C. W . Hoffman, and A . V . Grosse Precipitation of Thallium(l) from Perchloric Acid Solutions O . L. Forchheimer and R. P. Epple Radioactive Tracers in Paper Partition Chromatography of Inorganic Ions . . W . J . Frierson and J . W . Jones Colorimelric Determination of Aluminum in Iron Ore and Steel J . L. Kassner and M . A . Ozier Flame Spectrophotometry for Determination of Sodium, Potassium, and Lithium in Glass E, J . Broderick and P. G. Zack Semiautomatic Thermal Analysis Apparatus C. J . Penther, S. T. Abrams, and F. H. Stross Influence of Certain Elements on Line Intensity in Direct Current Arc . . . . W. G. Schrenk and H . E. Clements

1413 1418 1421 1427 1431 1440 1445 1447 1453 1455 1459 1467

M1CROCHEMISTRY Determination of Lanthanum in Rare Earth Mixtures F. T. Fitch and D. S. Russell Determination of Acetaldehyde and Acetone by Iodoform Reaction . . S- D. Nogare, T. O . Norris, and John Mitchell, Jr. Differentiation of Amylopectin, Amylodextrins, and Amylose-Fatty Acid Complexes Siegfried Nussenbaum High-Precision Se mi micro Automatic Titrator Ε. Ν. Wise Determination of Small Amounts of 2,4-Dichlorophenoxyacetic Acid in Milk R. P. Marquardt and E. N.Luce

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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, and 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., 623 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 Oct. 3, 1917, authorized July 13, 1918, Annual subscriptions: members $3.50, nonmembers $4.00. Postage to countries not in the Pan-American Union $1.20, Canadian postage $0.35. Combina­

BETTY V. KIEFFER DORIS L. KROUT

Issued October 19, 1951

Advisory S. E. Q. ASHLEY K. K. CHEN P. J. ELVING W. A. KIRKLIN I. M. KOLTHOFF H. A. LAITINEN

NOTES O N A N A L Y T I C A L

Board

GORDON MACKINNEY C. J. RODDEN J. w . STILLMAN W. J. SWEENEY GRANT WERNIMONT EDWARD WICHERS

PROCEDURES

S p ectro photo metric Determination of Nickel Using 1,2-Cycloheptanedionedioxime R. C. Ferguson and C. V . Banks 1486 Estimation of 0,0-Diethyl,0-p-Nitrophenyl Thiophosphate C. W. Wilson, Rodger Baier, Dale Genung, and James Mullowney 1487 Determ ination of Bismuth in Tungsten Ores C. L. Sollenberger and Janis Smith 1490 New Color Reaction for Detection of Methyl Ketone Group Jiro Adachi 1491 Determination of Nitrcfcn fcy Micrc-Di/rras Procedure. . E. F. Shelberg 1492 Simple Square-Law Computer R. H . Muller 1494 Lithium Aluminum Hydride as Qualitative Test Reagent for Aromatic Nitrocompounds L. S. Nelson and D. E. Laskowski 1495 Colorimetric Determination of Phosphorus in Steel U.T.Hill 1496 Determination of Strontium in Presence of Calcium K. A . Kobe and W . L. Motsch 1498 Fuchsin-Sulfite Reagent in Colorimetric Determination of Formaldehyde . Leon Segal 1499 Colorimetric Determination of Inorganic Phosphate in Microgram Quan­ tities Morris Rockstetn and P. W. Herron 1500 Photometric Analysis of Furfural Dissolved in Xylene . . . E.W.Rice 1501 Semimicroanalysis of Organoselenium Compounds E. S. Gould 1502 Spectrographs Determination of Impurities in Gallium Chloride Solutions W. M . Saltman and Ν. Η. Nachtrieb 1503 Rapid Polarographic Method for Determination of Molybdenum in Iron and Steel G . P. Haight, Jr. 1505 Ceric Sulfate-Arsenious'Acid Reaction in Microdetermination of Iodine Allen Lein and Neena Schwartz 1507 Infrared Spectroscopic Analysis of Mixtures of Bromochlorobenzenes . . L. N . Ferguson and A . J . Levant 1510 Spectrophotometric Determination of Bischlorophenof and Other Phenolic Compounds A . J . Singer and E. R. Stern 1511 Special Atmosphere Excitation in Generalized Semiquantitative Spectro­ graphs Analysis J . Y. Ellenburg and L. E. O w e n 1512 Determination of Calcium, Aluminum, and Iron in Magnesite R. E. Mosher, E. J . Bird, and A . J . Boyle 1514 Formal Potential of Cerium(VI)-Cerium(lll) Couple in Perchloric Acid . F. R. Duke and R. F. Bremer 1516 Acid-Bleached Fuchsin in Determination of Sulfur Dioxide in Atmosphere P. F. Urone and W. E. Boggs 1517 Dicyanatodipyridine Copper(ll) Complex For Colorimetric Determination of Cyanate £. L. Martin and Jean McClelland 1519 Glycine Determination in Tissues H . N . Christensen, T. R. Riggs, and N . E. Ray 1521 Saponification of Difficultly Saponifiable Esters—Correction . W. E. Shaefer 1452 CRYSTALLOGRAPHY D A T A BOOK REVIEWS THE ANALYST'S CALENDAR AIDS FOR THE A N A L Y S T

W. C. McCrone

Multiple Electrode Selector Used with pH Meter G . S. Duboff and G . H . Pratt Simple Calomel Electrode and Cell for Polarographic Analysis . . . . A . H. Brunner, Jr., and P. B. Means, Jr. Dispensing Pipet with Glass Piston F.E.Holmes Continuous Mercury Still P. B. Hamilton THE ANALYST'S C O L U M N INSTRUMENTATION NEW PRODUCTS FOR ANALYSTS MANUFACTURERS' LITERATURE

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A A A A

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