Pesticide Residues in Total Diet Samples

1964 ◽  
Vol 47 (5) ◽  
pp. 815-821
Author(s):  
S Williams
Keyword(s):  
Gas Chromatography ◽  
Plant Growth ◽  
Paper Chromatography ◽  
Growth Regulators ◽  
Pesticide Residues ◽  
Organophosphate Pesticide ◽  
Total Diet ◽  
Chlorinated Organic ◽  
Organic Pesticides ◽  
Chlorinated Organic Pesticides

Abstract Total diet samples collected since August 1962 were analyzed for the presence of chlorinated organic pesticides, parathion, and 2,4-D types of herbicides and plant growth regulators. Chlorinated pesticide residues were identified by paper, gas-liquid, thinlayer, and microcoulometric gas chromatography. Parathion residues were identified by polarography and confirmed by paper chromatography. Organophosphate pesticide residues were noted in a few samples by paper chromatography. No herbicides were detected in any samples.

Separation and Identification of Chlorinated Organic Pesticides by Paper Chromatography. XII. The Two Herbicides, 2,4-D and 2,4,5-T

1961 ◽  
Vol 44 (4) ◽  
pp. 720-722
Author(s):  
Lloyd C Mitchell
Keyword(s):  
Paper Chromatography ◽  
Dichlorophenoxyacetic Acid ◽  
Aqueous Solvent ◽  
Chlorinated Organic ◽  
Trichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Organic Pesticides ◽  
Chlorinated Organic Pesticides

Abstract Previous work, This Journal, 41, 781 (1958), lists the RP values for 2,4-dichlorophenoxyacetic acid (2,4-D)1 and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T)2 as 0.85- 0.92 and 0.86-0.89 for the aqueous solvent system3 and as 0.00 for both herbicides for the nonaqueous system4, respectively. This paper describes a procedure which separates these two compounds.

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