电感耦合等离子体质谱法测定水消毒剂次氯酸钠中的砷
Water Purification Technology(2018)
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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