褐煤中金属元素的形态分布和ICP-OES分析  

THE PARTITIONING AND THE ICP-OES ANALYSIS OF METALS IN FRACTIONS XILINGUOLE LIGNITS

作　　者：邹本东[1] 敖登高娃[1] 尚洪山[2] 其鲁[2] 

机构地区：[1]内蒙古大学化学化工学院,呼和浩特010021 [2]北京大学化学与分子工程学院,北京100871

出　　处：《环境化学》2005年第1期68-71,共4页Environmental Chemistry

基　　金：内蒙古自然科学基金资助项目 ( 2 0 0 2 0 80 2 0 114 )

摘　　要：应用 5步逐级化学提取研究了褐煤中多种金属元素的存在形态 ,并用电感耦合等离子体原子发射光谱 (ICP OES )法测定了整个提取过程中金属元素的浓度 ,结果表明 ,应用 5步逐级化学提取法可以有效地定量研究褐煤中金属元素的形态分布 .计算了逐级提取过程中每一步骤的提取率和可提取形态的百分比 。The partitioning of several metal elements in lignites from Xilinguole League was investigated using five-step sequential chemical extraction procedures. Metal concentrations in the extracts were measured by inductively coupled plasma optima emission spectrometry (ICP-OES). The research shows that five-step sequential chemical extraction procedures are efficient in determining the partitioning of lignits quantitatively. The efficiency of the extraction process for each step and extractable fractions was examined, and the partitioning of metals in lignites from Xilinguole league was discussed.

关 键 词：褐煤 化学提取 并用 形态分布 金属元素 电感耦合等离子体原子发射光谱 研究 存在形态 浓度 提取率 

分 类 号：TQ533[化学工程—煤化学工程]