A collaborative study of residues on wheat of chlorpyrifos‐methyl, fenitrothion, malathion, methacrifos and pirimiphos‐methyl. 1. Method development

Abstract

The accuracy and reproducibility of analytical methods for the assay of five organophosphorus grain protectants have been investigated by a coordinated test programme. Results were assessed using data from field applications of chlorpyrifos-methyl, fenitrothion, malathion, methacrifos and pirimofos-methyl at commercial silos in New South Wales and Queensland. A satisfactory analytical procedure is recommended following an extended series of tests.

Loss of Bioresmethrin, Carbaryl and <i>d</i>-Fenothrin on Wheat during Storage

“…This also contained 60g/liter of anionic and 60g/liter of non-ionic emulsifiers, made up to 1 liter with high boiling organic solvents. (2) Tables 1-3. Residue levels (R) were measured after periods of storage (t*) of 3.…”

Multi-residue Determination of Synthetic Pyrethroids and Organophosphorus Pesticides in Whole Wheat Flour using Gas Chromatography

“…A collaborative study on method development of organophosphorus pesticide residues in wheat has been reported (Desmarchelier et al 1977). Bottomley and Baker (1984) developed a method to screen most of the commonly used pyrethroid and organophosphorus pesticides in grain using gas chromatography.…”