摘要
根据大口径毛细管柱容量大、柱效高这一特点,用有机溶剂提取、凝结净化和硅胶柱层析相结合的方法对样品进行净化,以OV-101大口径石英毛细管柱为分析柱,对敌敌畏、速灭威、叶蝉散等十余种农药在蔬菜中残留的多种组分进行测定,其方法快速、准确、灵敏度高。最低检出浓度低于联合国卫生组织所规定的最大残留量2~3个数量级,满足了对食品中农药多种残留组分的分析要求。
More than ten pesticides such as dichlorvos, metolcarb, isoprocarb etc., the residual component of which in the vegetables was determined. The steps of samples analysis were as follows: taking OV - 101quartz capillary as analytical column; purifying samples by extraction using organic solvent, coagulation, and graded analysis using silica column. Result showsed that maximum residual limit lower than FAO health organization by 2 - 3quantity classes.
出处
《吉林林业科技》
2001年第5期1-3,共3页
Journal of Jilin Forestry Science and Technology