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气质联用法测定纸和纸制品中百菌清残留量

Paper Chemicals(2020)

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Abstract
建立了一种测定纸和纸制品中百菌清残留量的气质联用分析方法.该方法以乙酸乙酯作为萃取溶剂,采用超声萃取技术提取纸和纸制品中残留的百菌清,提取液经浓缩、定容、过滤后进行气相色谱/质谱-选择离子监测法(GC/MS-SIM)测定,外标法定量.该方法检出限为0.1 mg/kg,加标平均回收率为81.56%~95.87%,相对标准偏差为1.57%~4.88%.该方法简便快捷,易于操作,检出限低,灵敏度高,检测通量大,可完全满足纸和纸制品中百菌清残留量日常检测工作的需要.
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