水中多种微量元素的直接测定

Direct determination of multiple trace-elements in water

采用过滤/酸化的处理方法,利用ICP AES法对矿泉水和地下饮用水中Sr、Cu、Cr三种元素进行了测定.回收率为86%～109 6%,相对标准偏差均小于4 51%,与国家饮用水各元素的标准相符,结果满意.

This paper discusses the determination of Sr?Cu and Cr in mineral water and undergroud drinking water with ICPAES by adopting the processing method of filtration/acidification.The recoveries of elements are 86%～1096%.The RSDs are less than 451%.The contents of these elements in samples by this method are in agreement with those provided by the national standard.The results are satisfactory.