Publisher : The Korean Society of Environmental Agriculture
DOI : 10.5338/KJEA.2012.31.2.146
Title & Authors
Development of Analytical Method for Picoxystrobin in Agricultural Commodities Using GC/ECD and GC/MS Kwon, Hye-Young; Kim, Chan-Sup; Park, Byung-Jun; Kim, Il-Hwan; Hong, Su-Myeong; Son, Kyung-Ae; Jin, Yong-Duk; Lee, Je-Bong; Im, Geon-Jae; Kim, Doo-Ho;
BACKGROUND: This study was conducted to develop analytical method for picoxystrobin in agricultural commodities using GC/ECD and GC/MS. METHODS AND RESULTS: Each steps of analytical method were optimized for determining picoxystrobin residues in various agricultural commodities. The developed methods include acetone extraction, n-hexane/saline water partition and florisil column chromatography for analysis of all samples (apple, potato, green pepper, hulled rice and soybean), and in addition to these steps, solid phase extraction (SPE) was used for analysis of green pepper and n-hexane/acetonitrile partition was used for analysis of hulled rice and soybean. The instrumental conditions were tested for quantitation in GC/ECD and for confirmation in GC/MS. Recovery was in the range of 86~109% with RSD 10.2% and the quantitation limits (LOQ) of method were 0.025 mg/kg in all agricultural commodities. CONCLUSION: The result showed that the developed method can be used to determine picoxystrobin residue in agricultural commodities.
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