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基质分散固相萃取结合UPLC-MS/MS测定蔬菜及水果中50种农药残留 被引量:6

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摘要 建立了用含1%乙酸的乙腈提取,基质分散固相萃取法(QuEChERS)对样品净化,结合UPLC-MS/MS,应用于果蔬中有机磷、氨基甲酸酯及其它等50种农药的同时测定.试验采用外标法定量,50种农药检出限均小于5μg.kg^-1,标准曲线在0.01 mg.L^-1~0.5 mg.L^-1间线性相关系数(r2)〉0.98.在0.01 mg.kg^-1~0.1 mg.kg^-1的添加水平下分别进行添加回收实验,平均回收率在65%~118%之间,相对标准偏差〈25%.试验表明,方法操作简单、快速、成本低,能够应用于果蔬中农药多残留的快速筛选及定量分析.
出处 《生物技术世界》 2016年第5期62-63,65,共3页 Biotech World
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参考文献8

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二级参考文献16

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