Determination of Residual Concentration and Half-life Time in Soils of Imidazole Fungicide Prochloraz

Imidazole계 살균제 Prochloraz의 토양 중 잔류량과 반감기분석

  • Received : 2001.10.17
  • Published : 2002.02.25

Abstract

The residual analysis and half-life time of imidazole fungicide prochloraz in soils (silty clay) were investigated by gas chromatography equipped electron capture detector (GC-ECD). The soil samples were extracted acetone/hexane(1:1) solvent and analyzed after separated by $LC-NH_2$ Sep-Pak solid column. Linear sensitivity of standard calibration curve was Y = 268.8600X + 0.0664, $R^2=0.9998$ between 0.05~1.00 ng. The detection limit was 0.02 mg/L and the average recoveries were 94.5~97.3% from the standard additional experiments with 0.10 and 0.40 mg/L. The half-life time was 24.4 days in room laboratory and 7.6 days in the field test soil.

Keywords

prochloraz;residue analysis;half-life time

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Acknowledgement

Supported by : 상주 대학교, 원광대학교 의약자원 연구센터