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KMID : 0380620110430020125
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Korean Journal of Food Science and Technology
2011 Volume.43 No. 2 p.125 ~ p.133
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Development of Analytical Methods of Spinosad in Agricultural Commodities by HPLC with UV Detector and Monitoring
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Kim Hee-Yun
Choi Sun-Hee
Cheong So-Young
Choi Hee-Ju
Kim Yong-Hoon
Cho Min-Ja
Seo Eun-Chae
Han Kyung-Jin
Choi Jae-Chun
Park Hee-Ok
Ha Sang-Chul
Shin Il-Shik
Eom Ji-Yoon
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Abstract
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The purpose of this study was to develop a methodology to detect spinosad which are difficult to analyze by multi-component simultaneous analysis of pesticide residues. We monitored spinosad due to the paucity of related information. The spinosad was determined using HPLC with UV detector at 250 nm. Correlation coefficient (r2) for standard curve of spinosad A and D at standard concentration of 0.1-5.0 mg/kg were 0.999, respectively. Limit of quantitation (LOQ) of HPLC analysis was 0.005 mg/kg while limit of detection (LOD) was 0.001 mg/kg. Recovery experiments were conducted on five representative agricultural products to validate the analytical method. The recovery of proposed methods ranged from 74.9% to 104.0% and relative standard deviations were less than 10%. Spinosad residues were investigated in 16 commodities collected from 22 provinces. In this study, residues on all samples were not detected.
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KEYWORD
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spinosad, HPLC, mass spectrometry, monitoring
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