2001•Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)Open access
Clean-up Procedure with Ion-exchange Mini Column in the Analysis of Flusulfamide in Agricultural Products by HPLC.
Yumiko Nakamura, SUSUMU ISHIMITSU, Yukari Tsumura, Kimihiko Yoshii, Akiko Kaihara, Yasuhide TONOGAI
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Abstract
A clean-up procedure with an ion-exchange column in the analysis of flusulfamide by HPLC was examined. Pesticide in the sample was extracted with methanol following liquid-liquid partition with ethyl acetate. The ethyl acetate fraction was cleaned up with silica gel column chromatography. The eluate from the silica gel column was further cleaned up with SAX + PSA mini column, then determined by HPLC. Carotenoids and interfering peaks were removed by washing the combined mini columns with 10 mL of 20% acetone-containing n-hexane and 5 mL of acetone, and flusulfamide was eluted with 35 mL of acetone.
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