机构地区: 中华人民共和国农业部
出 处: 《石河子大学学报(自然科学版)》 2003年第3期209-210,共2页
摘 要: 介绍了高效液相色谱法测定小麦粉中吡虫啉农药残留量的方法,样品经甲醇超声提取,固相萃取小柱快速净化提取物,经紫外检测器分离测定,方法的检出限为0.05 mg/kg,回收率大于80%,相对标准偏差小于7%。 A method was reported for determination of Imidaclorid in wheat flour by high performance liquid ehromatogra-phy(HPLC) . Imidac'loprid was extracted with methanol in an ultrasonic hath, and purified through Sep-Pak column, then separated with UV detection. The content of hnidacloprid was determinated by external standard method. The determination limit was 0.05rng/kg. The recovery was more than 80% and RSD was under 7% .