Effects of per-household processes on the levels of chlorpyrifos residues in lettuce (Lactuca sativa)

Background: The study was organized to evaluate residue levels of chlorpyrifos on Lactuca sativa that are likely to have accumulated on crop during cultivation and also examine the effect some pre-household treatment procedure on residue levels on the crop grown in a tropical and humid environment. Chlorpyrifos residue was extracted using acetonitrile. Subsequent detection and a quantification were done using GC with PFPD. Concentrations of Chlorpyrifos applied at different stages of growth of...