电感耦合等离子体质谱法测定水消毒剂次氯酸钠中的砷

Xiaoyan Xu,Erdan Jing,Peizhi Yu,Qinghui Tang,Min He,Rong Zhang,Yueying Fang,Feifei Yang,Hui Peng,Lulu Xue,Schmidt Wido,Hongbo Liu

Water Purification Technology（2018）

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Abstract

采用电感耦合等离子体质谱仪测定水消毒剂次氯酸钠中的砷.仪器信号波动、漂移均通过在线加入的Ge(5μg/L)内标进行校正,并采用碰撞池技术(CCT)消除干扰.结果表明,该方法浓度可达0～50 μg/L,相关系数为0.9995～1.0000,检出限为0.000 61μg/g,砷的回收率为94.9％～107.8％,样品测定精密度RSD为0.048％～3.01％,满足水消毒剂检测要求.

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