氟化铵辅助消解ICP—MS同时测定岩石中的38种元素  

Determination of 38 Elements in Rock by ICP-MS Combined with the Decomposition of Ammonium Fluoride

作　　者：高小红[1] 张尼[1] 沈宇[1] 刘洪敏 

机构地区：[1]西北有色地质研究院,西安市西影路710054 [2]陕西省核工业地质局224大队,西安市纺渭路1009号710024

出　　处：《光谱实验室》2014年第4期522-526,共5页Chinese Journal of Spectroscopy Laboratory

摘　　要：利用氟化铵-硝酸消解体系ICP-MS测定了岩石样品多种微量、痕量元素．通过对岩石国家标准物质的分析，考察了消解时间、温度、氟化铵及硝酸用量对消解效果的影响．实验结果表明，经氟化铵-硝酸消解体系前处理的岩石样品与经典的氢氟酸-硝酸消解体系无差异．此外氟化铵消解体系更加环保，并且减小了对分析人员的伤害。In this work, the effects of ammonium fluoride on. the decomposition of rocks were investigated by analyzing certified reference materials. Trace and ultra-trace elements were analyzed by inductively coupled plasma mass spectrometry （ICP-MS）. Decomposition time, temperature and the amount of ammonium fluoride were studied in detail. By testing certified reference materials and real samples, it was found that trace and ultra-trace elements could be digested using ammonium fluoride instead of hydrofluoric acid. Moreover, the use of ammonium fluoride instead of hydrofluoric acid contributes to a greener environment and safer for operators.

关 键 词：氟化铵 前处理 绿色消解 地球化学样品 

分 类 号：O657.63[理学—分析化学]