ACS MEETING PROGRAM Wednesday Morning SYMPOSIUM ON ANALYTICAL METHODS W I T H EMPHASIS O N MINOR ELEMENTS M. W . Skougstad, Presiding 9:00 9:10 9:35 10:00 10:25 10:50 11:15
Introductory Remarks. M. W. Skougstad, U. S. Geological Survey. The Crits Organic Ring Test—A Simple Test for Trace Organic Substances in Water. G. J. Crits, Crane Co. Determination of Naturally Occurring Organic Acids in Surface Waters. / . K. Rice and D. E. Simon II, Cyrus Wm. Rice & Co. Automatic Colorimeter for Determination of Fluo rides in Drinking Water. P. H. Johnson, Milton Roy Co. Determination of Low Level Hydrocyanic Acid in Solution Using Gas-Liquid Chromatography. C. R. Schneider and Harry Freund, Oregon State University. Determination of Water Soluble Degradation Prod ucts on Styrene Type Cation Exchange Resins. F. M. Nelson, Illinois Water Treatment Co. Concentration Method for Determination of Seven teen Minor Elements in Natural Waters. W. D. Silvey and Robert Brcnnan, U. S. Geological Survey.
HETO WATER
THERMOSTATS
Individual, compact and flexible thermostats are a re quirement in present day laboratories. HETO thermostats offer compactness and reliability in several styles and pump capacities; noiseless, radiation-free motors . . . and dual capacity controlled heater . . . cooling coils . . . all stainless tanks and fittings . . . and water flow control. Ideal for any temperature control application.
Wednesday Morning WORKSHOP ON METHODS FOR PESTICIDE RESIDUES AND FOOD ADDITIVES
Joint with Division of Agricultural and Food Chemistry (Pesticides Subdivision) C. H. VanMiddelem, Presiding Extraction, Clean-up, and Isolation 9:00 9:10 9:30 9:50 10:05 10:20
10:40 11:00
11:20
11:40
2:00 2:05
Introductory Remarks. W. P. McKinley, Food and Drug Directorate. Clean-up Procedure for 3-AT in Food Crops. R. W. Storherr and J. Burke, Food and Drug Administration. Extraction and Clean-up Studies for Parathion Resi dues on Leafy Vegetables. C. H. VanMiddelem and R. E. Wattes, University oj Florida. Clean-up in Application of Gas and Paper Chromatog raphy to 2,4-D Residue Analysis. George Yip, Food and Drug Administration. Clean-up in Use of Microcoulometric Gas Chromato graphic Apparatus for Pesticide Residue Analysis. J. Burke, Food and Drug Administration. Clean-up Procedure for Chromatographic Indentification of Some Organophosphate Insecticides. H. F. MacRae and W. P. McKinley, Food and Drug Direc torate. Clean-up in Use of Paper Chromatography in Organo phosphate Residue Analysis. M. E. Getz, Food and Drug Administration. Comparison of Five Extraction Procedures for Re covery of D D T Residues in Field Treated Collards. L. J. Hardin, C. T. Sartcn, University oj Tennessee, J. F. Eheart, P. II. Massey, Jr., and Jean Dickinson, Virginia Agricultural Experiment Station. Clean-up Procedures for Fat and Vegetable Extracts Containing D D T , D D E , Rhothane, Dieldrin, Kelthane, and Methoxychlor. W. P. McKinley and G. Savary, Food and Drug Directorate. General Discussion of Phase. W. P. McKinley, Food and Drug Directorate.
CLOSED TANK 14" χ 5 " χ l'A"
OPEN BATH TYPE 24" χ 12" χ 6"
Wednesday Afternoon
SOLD A N D SERVICED IN U.S.A. BY
SYMPOSIUM ON ELECTROANALYTICAL CHEMISTRY
THE LONDON COMPANY
J . W . Ross, Presiding Introductory Remarks. J. W. Ross, Massachusetts Institute oj Technology. Polarography in Ethylenediamine. W. B. Schaap,
(Formerly W e l w y n International Inc.) 3355 Edgecliff Terrace CLEVELAND 1 1 , O H I O
In Canada: Bach-Simpson Ltd. Circle No. 149 on Readers' Service Card VOL.
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NO.
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AUGUST
1961
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