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基于两种前处理对苹果叶片中虫酰肼残留的液相分析方法

Environmental Chemistry(2020)

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Abstract
为进一步研究虫酰肼在苹果树冠层的递释规律,分别采用QuEChERS法和Florisil固相萃取法建立虫酰肼在苹果叶片上的液相分析检测方法.结果 显示,QuEChERS法虫酰肼的均添加回收率为80.34%-99.20%,变异系数为5.3%-17.9%,最小检出量均为0.1 ng,最低检出质量浓度均为0.01 mg· L-1;Florisil固相萃取法虫酰肼的均添加回收率为78.45%-88.24%,变异系数为7.8%-10.9%,最小检出量均为0.1ng,最低检出质量浓度均为0.02 mg· L-1.两种方法均满足农药残留分析的要求.
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