Residue Analysis of 4-Chlorophenoxyacetic Acid in Tomato Fruit

Abstract

Shell Chemical Co. for providing the two insecticides used in this study. Mention of proprietary products is for identification only and does not necessarily imply endorsement of these products bs the V. S. Department of Agriculture.

Pesticide residues

“…Only 5 to 10 min were required to cool and equilibrate the instrument between determinations. A sample of heptachlor epoxide was injected on 12 different days over a period of two months. The mean retention time was 12.1 min and the standard deviation was ± 0.28 min.…”