Journal
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
Volume 31, Issue 7, Pages 972-983Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10826070801924675
Keywords
soy; multiclass pesticides analysis; sample preparation; MSPD; method validation; HPLC-DAD
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A method to determine six pesticides applied in soy cultivation (imazethapyr, imazaquin, metsulfuron-methyl, carboxin, chlorimuron-ethyl, and tebuconazole) using matrix solid phase dispersion (MSPD) as the extraction technique followed by a clean-up step, using a C8 co-column, and subsequent chromatographic analysis by high performance liquid chromatography diode array detection (HPLC-DAD) was developed. The validated method showed good recuperation for all pesticides (60-120%), except for metsulfuron-methyl and tebuconazole at their lowest concentration levels, and the quantification limits of the method (0.04-0.08gg-1) were below the maximum residue limits imposed by the principal regulatory agencies.
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