吡虫啉在金银花、大青叶中的残留动态研究

Shandong Agricultural Sciences(2013)

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Abstract
研究了吡虫啉在金银花、大青叶中残留的分析方法及消解动态。样品经乙腈提取,再经NH2柱净化,用UPLC-MS/MS测定。结果表明:吡虫啉在金银花中的半衰期为1.71~1.58 d,在大青叶中的半衰期为2.45~1.97 d,最低检出浓度为0.01 mg/kg。在金银花及大青叶中的平均回收率分别为80.3%~83.1%、81.8%~85.5%;相对标准偏差分别为4.5%~6.3%、3.1%~5.0%。
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Key words
Imidacloprid,UPLC-MS/MS,Folium isatidis,Honeysuckle,Residue
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