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气相色谱-质谱法测定粮谷中丁草胺的残留量
Determination of Butachlor Residue in Grains by GC-MS Method
【摘要】 大米、糙米、玉米、大麦、小麦试样用正己烷提取,经凝胶色谱和固相萃取柱净化,气相色谱-质谱仪检测,外标法定量。添加水平在0.01 ̄0.50mg/kg时,回收率范围为80.6% ̄98.5%;相对标准偏差为8.6% ̄15.5%;测定低限为0.010mg/kg。
【Abstract】 Rice, brown rice, corn, barley, wheat sample were extracted with n-hexane, the extract was cleaned up by passing through gel permeation chromatography (GPC) and solid phase extraction (SPE) with one florisil column, and the final solution was determined by GC-MS with external standard method. RSDs were 8.6-15.5% and recoveries were 80.6-98.5%. The limit of determination was 0.010 mg/kg.
- 【文献出处】 农药 ,Agrochemicals , 编辑部邮箱 ,2009年04期
- 【分类号】TQ450.263
- 【被引频次】6
- 【下载频次】195