Pesticide Residue Methods





Category Others
Class Name Pesticide Specific Enforcement Method, Cyhalothrin
Method Title THE DETERMINATION OF RESIDUES OF CYHALOTHRIN IN CROPS a gas-liquid chromatographic method using an internal standard.
Method Date 1985/07/31
Method Type Quantitative
Scope and Application
Method Summary Samples which have been accurately fortified with an internal standard are extracted by maceration in the presence of 50pct acetone: hexane and the organic extracts washed with water to remove acetone. Co-extracted lipids are re-dissolved by liquid partition chromatography where necessary, whilst all samples are subjected to adsorption chromatography to remove interfering endogenous materials. Final quantitative determination is by gas-liquid chromatography using electron capture detection and internal standardisation.
Applicable Concentration Range For analysis of cyhalothrin in crop matrices. Should work with most vegetable matrices.
QC Requirements See Attached Method
Method Performance/Validation See Attached Method
Method Source U.S. EPA
Method SOP PDF icon SOP 
Citation ICI Chemicals, PLANT PROTECTION DIVISION, Bracknell Berkshire RG126EY RESIDUE ANALYTICAL METHOD NO.70