【作者】 白冰; 董茂锋; 邢增涛; 赵晓燕;
【Author】 BAI Bing,DONG Maofeng,XING Zengtao,ZHAO Xiaoyan Institute for Agri-food Standards and Testing Technology,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China
【机构】 上海市农业科学院农产品质量标准与检测技术研究所;
【摘要】 用气相色谱-质谱法对双孢蘑菇(Agaricus bisporus)和香菇(Lentinula edodes)中67种农药进行检测。样品经乙腈均质提取,盐析除水,氨基柱净化后用气相色谱-质谱仪分析,在选择离子监测模式下以特征离子的保留时间定性定量测定67种农药。在添加农药标准品浓度为0.05、0.10和0.25 mg/kg水平上,大多数农药的平均回收率在70%120%之间,检出限在0.010.5μg/kg之间。
【Abstract】 Gas chromatography-mass spectrometry(GC-MS) was used to determine the levels of 67 pesticide residues in fruit bodies of Agaricus bisporus and Lentinula edodes.Fresh mushroom fruit bodies for GC-MS analysis were first homogenized,and a solution containing standard amounts of 67 pesticides at three different concentrations(0.05,0.10 and 0.25 mg/kg) were added.After thorough mixing,the homogenates were extracted with acetonitrile and purified using a Cleanert NH2-SPE column.Pesticides were determi...
【关键词】 气相色谱-质谱; 检测; 农药残留; 食用菌;
【Key words】 Gas chromatography-mass spectrometry; pesticide residue determination; edible fungi;
【基金】 上海市技术标准专项(编号:08DZ0504000)的部分研究内容
【分类号】S481.8