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Development of method for analysis of four sulfonylurea pesticides, rimsulfuron, ethametsulfuron-methyl, tribenuron-methyl, chlorimuron-ethyl residues by high-performance liquid chromatography with diode-array detection

Authors
Koo, Y.-C.Yang, S.-Y.Wang, Z.An, E.-M.Heo, K.Kim, H.Shin, H.-S.Lee, J.-W.Lee, K.-W.
Issue Date
2010
Publisher
Korean Society of Food Science and Nutrition
Keywords
HPLC; Pesticide; Residue analysis; Sulfonylurea
Citation
Journal of the Korean Society of Food Science and Nutrition, v.39, no.8, pp.1231 - 1235
Indexed
SCOPUS
KCI
Journal Title
Journal of the Korean Society of Food Science and Nutrition
Volume
39
Number
8
Start Page
1231
End Page
1235
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/118277
DOI
10.3746/jkfn.2010.39.8.1231
ISSN
1226-3311
Abstract
The method for residue analysis of four sulfonylurea pesticides, rimsulfuron, ethametsulfuron-methyl, tribenuron- methyl and chlorimuron-ethyl was examined and analyzed by HPLC with ODS column (250 mm×4.6 mm, 5 μm diameter particle size) which was maintained at 35°C. Mobile phase consisted of solvent A (20 mM KH 2PO 4, pH 2.5) and solvent B (acetonitrile). Isocratic elution of the column with 45% solvent A and 55% solvent B at a flow rate of 1 mL/min resulted in retention times of 5.92, 6.54, 9.28, and 14.35 min for rimsulfuron, ethametsulfuron-methyl, tribenuron-methyl, and chlorimuron-ethyl, respectively. All injection volumes were 20 μL. The limit of quantitation was 0.02, 0.01, 0.001, and 0.004 mg/kg for rimsulfuron, ethametsulfuron-methyl, tribenuron-methyl, and chlorimuron-ethyl, respectively. Recovery rate test was performed with three farm products, rice, apple and soybean. Four sulfonylurea pesticides were spiked at concentrations of 0.05, 0.1 and 0.5 mg/kg. The recovery rates were ranged from 86.12% to 116.26% and the standard deviations of all experiments were within 10%.
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