GC/MSD detection of the metabolic residues of metolachlor in tomato fruit |
| |
Authors: | J. D. Gaynor D. C. MacTavish A. S. Hamill |
| |
Affiliation: | (1) Research Station, Agriculture Canada, N0R 1G0 Harrow, Ontario, Canada |
| |
Abstract: | Summary A gas chromatograph/mass selective detector method is presented for the analysis of the major metabolic residues of metolachlor by acid hydrolysis of tomato fruit. The two major hydrolysis products, CGA-37913 (2-[2-ethyl-6-methylphenyl]amino-1-propanol) and derivatised CGA-49751 (4-[2-ethyl-6-methylphenyl]-2-hydroxy-5-methyl-3-morpholinone) were monitored in the selective ion mode atm/z 162 andm/z 160, respectively. Recoveries from 87 to 96% were obtained for tomato fortified at 50 to 200g kg–1. The proposed method of analysis will allow for a detection limit of 11 g kg–1 for CGA-37913 and 12 g kg–1 for the derivatised CGA-49751. |
| |
Keywords: | Gas chromatography MS detection Metachlor Herbicide residues Tomatoes |
本文献已被 SpringerLink 等数据库收录! |