3:20
3:50
4:10
4:30
pounds with Mercury by Cathodic Stripping. W. Kemula, Warsaw Univrrsity and tho Polish Acad'-my of Sciences, Warsaw, Poland. Cl-9 Influence of the SurfaceActive Substances on Anodic Stripping Curves Obtained with the Hanging Mercury Drop Electrode ( H M D E ) in Solutions of Different Salts. W. Komtila, Warsaw University and the Polish Academy of Sciences, Warsaw, Poland. Cl-10 Separation of MicroQuantities of Metal Ions by the Weisï Ring Oven Technique in the Presence of Complexing Agents. E. J. Singh and A. K. Dey, University of Allahabad, India. Cl-11 Thermo-Derivatographic Investigations in the Field of Analytical Chemistry. I>. Erdey and F. Paulik, Institute for General Chemistry, Budapest, HunK«ry. Cl-12 Evaluation of the Masking Agent in the Chelometric Titration. K. Ueno, Kyushu University, Fukuoka, Japan
Section C-3.
Analysis of Pesticide Residues
Prof. R. Truhaut, Paris, France, chairman 2:00 C3-7 Insecticidal Residues in Soils and Their Translocation into Crops. E. P. Lichtenstein, University of Wisconsin. 2:50 C3-8 Persistence and Performance of Declining Insecticide Residues on Apple Foliage. K. Williams and D. P. Pielou, Department of Agriculture, Summerland, B. C , Canada. 3:15 C3-9 Paper Chromatographic Determination of Dieldrin and Similar Pesticide Residues in Wildlife. H. Egan, Laboratory of the Government Chemist, England. 3:50 C3-10 Practical Considerations in the Degradation of Pesticide Residues From Forage Crops. L. E. Mitchell and L. Lykken, Shell Chemical Co. 4:15 C3-11 Uptake of Mercury By Plant Materials. J. T. Martin, University of Bristol, England.
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