An extraction method and residues of benzimidazole fungicides in soybean sprouts

콩나물중 benzimidazole계 농약의 추출방법과 잔류성

  • Park, Jun-Jo (Division of Food Chemistry Health and Environment Institute of Kyonggi-Do) ;
  • Yong, Kum-Chan (Division of Food Chemistry Health and Environment Institute of Kyonggi-Do) ;
  • Jeung, Jin-A (Division of Food Chemistry Health and Environment Institute of Kyonggi-Do)
  • 박준조 (경기도 보건환경연구원) ;
  • 용금찬 (경기도 보건환경연구원) ;
  • 정진아 (경기도 보건환경연구원)
  • Published : 2000.03.31

Abstract

An analytical method was approached to determine the residues of benzimidazole fungicides in soybean sprouts and was compared with traditional solvent-based method of extraction, solid phase extraction(SPE) and matrix solid phase dispersion(MSPD). The recoveries of carbendazim for liquid-liquid extraction (LLE), SPE and MSPD in soybean sprouts were $69.25{\sim}79.16$, $79.99{\sim}90.42$ and $92.40{\sim}98.48%$, respectively. The recoveries of thiabendazole for LLE, SPE and MSPD in soybean sprouts were $64.86{\sim}83.26$, $79.12{\sim}94.04$ and $65.44{\sim}73.92%$, respectively. The residues of carbendazim by elapsed time under our cultivated soybean sprouts program found $0.10{\sim}0.25$ mg/kg after 5 days and trace concentration of carbendazim was detected after 7 days. Of the 448 samples analyzed, less than 1.5% had residues of carbendazim ranged from 0.05 to 0.37 mg/kg.