气相谱法快速测定植物性食品中对硫磷和甲基异柳磷残留量作者:孟庆顺 周义国 刘蔷高纯硝酸钾
来源:《湖北农业科学》2020年第18期 骑行者
铝铁合金 摘要:利用FPD检测器,建立了气相谱法对植物性食品中对硫磷和甲基异柳磷含量快速测定的方法。结果表明,对硫磷和甲基异柳磷检出限均为2 μg/kg(进样量为1 μL,S/N=3),对硫磷和甲基异柳磷样品加标回收率分别为86.7%~94.5%、89.3%~92.6%,对硫磷和甲基异柳磷相对标准偏差RSD(n=10)分别为3.86%、4.23%。
关键词:外标法;植物性食品;对硫磷;甲基异柳磷
无水洗手液 中图分类号:O65 文献标识码:A
文章编号:0439-8114(2020)18-0121-02
DOI:10.14088/jki.issn0439-8114.2020.18.024 开放科学(资源服务)标识码(OSID):
Rapid determination of parathion and isofenphos-methyl
residues in plant foods by gas chromatography
垫块模具 MENG Qing-shun, ZHOU Yi-guo, LIU Qiang
(Huai’an Institute for Food and Drug Control, Huai’an 223300, Jiangsu, China)
视觉定位系统 Abstract: A method was established for the determination of the content of parathio
n and isofenphos-methyl in plant food by gas chromatography. The method was validated by FPD detector, external standard method and automatic injection, the results showed that the detection limits of parathion and isofenphos-methyl were 2 μg/kg (1 μL, S/N=3), the recoveries of parathion and isofenphos-methyl were 86.7%~94.5%, 89.3%~92.6%, the RSD(n=10) of parathion and isofenphos-methyl were 3.86% and 4.23% respectively.