论文部分内容阅读
样品经水和丙酮混合液提取,石油醚液—液分配,氟罗里硅土柱净化,用GC-ECD测定,用外标法定量。添加浓度在0.05~0.2 mg/kg时,平均回收率在76%~92%,RSD在3.8%~6.2%。本方法灵敏可靠。
The sample was extracted by water and acetone mixture, petroleum ether liquid-liquid partition, purify with Florisil silica column, determined by GC-ECD and quantified by external standard method. The average recoveries ranged from 76% to 92% and the RSD ranged from 3.8% to 6.2% at 0.05-0.2 mg / kg. This method is sensitive and reliable.