逐级化学提取(SCEE)技术及其在煤微量元素赋存状态研究中的应用

Sequential Chemical Extraction Technology and its Applications in Coal Trace Element Occurrence Study

概述了逐级化学提取(SCEE)技术的分析方法,介绍了SCEE技术的发展历程和其中典型的Tessier、BCR权威分析方法,综述了近一段时间国内外SCEE技术在煤微量元素赋存状态研究方面的应用状况,并就该技术在赋存状态研究方面仍存在的问题进行了两方面探讨:(1)煤中不同赋存状态元素在逐级化学提取中的归属问题;(2)逐级化学提取法分析元素形态存在的问题。

The current common sequential chemical extraction （SCEE） technology research methods were summarized. The development of SCEE technology and its typical Tessier, BCR analysis method was introduced. The application of SCEE technology in coal trace elements occurrence research at home and abroad was described. In recent years, investigates problems of SCEE technology research in occurrence research was divided into two aspects： （1） the attribution of different elements on the occurrence state in coal during the sequential chemical extraction; （2） problems during the analysis of the trace elements on the occurrence state with SCEE technology.