等离子体发射光谱法同时测定大洋富钴结壳中硅锰铁钙镁铝钛

Simultaneous Determination of Si, Mn, Fe, Ca, Mg, Al and Ti in Co-rich Crusts from Ocean by ICP-AES

摘要: 大洋富钴结壳试样经ＨＣｌ＋ＨＮＯ３＋ＨＦ溶解，在０．２ｍｏｌ／ＬＨＦ和０．１３ｍｏｌ／ＬＨ３ＢＯ３介质中，用感耦等离子发射光谱法同时测定Ｓｉ、Ｍｎ、Ｆｅ、Ｃａ、Ｍｇ、Ａｌ、Ｔｉ元素的含量。方法经国家标准物质ＧＢＷ０７２４９大洋多金属结核验证，其结果与标准值相符，精密度ＲＳＤ〈３．２％（ｎ＝６）；已应用于太平洋富钴结壳中多元素分析。

Abstract: A method for simultaneous determination of Si, Mn, Fe, Ca, Mg, Al and Ti in Co rich crusts from the Pacific Ocean by ICP AES was developed. Samples were dissolved in mixed acid (HCl HNO 3 HF) and in a medium of 0.2 mol/L HF and 0.3 mol/L H 3BO 3.7 el