| 离子色谱-氢化物发生-原子荧光法测定含金尾矿中砷 |
| |
| 引用本文： | 罗锡明,赵立谦,徐步县.离子色谱-氢化物发生-原子荧光法测定含金尾矿中砷[J].光谱学与光谱分析,2008,28(1):206-208. |
| |
| 作者姓名： | 罗锡明 赵立谦 徐步县 |
| |
| 作者单位： | 1. 中国地质大学水资源与环境学院,北京,100083
2. 东华理工学院土木与环境工程系,江西,抚州,344000 |
| |
| 基金项目： | 国家自然科学基金
,
武警环境指挥部项目 |
| |
| 摘 要： | 研究了离子色谱-氢化物发生-原子荧光(IC-HG-AFS)联用测定金矿尾矿淋滤液中各种价态砷的方法。以(NH4)2HPO4溶液(pH6.00)为流动相,阴离子分离柱分离,原子荧光进行检测,As(Ⅲ)加标回收率在97%～107%、As(Ⅴ)在95%～109%之间,相对标准偏差小于4%。从测试结果和色谱分离图可以看出,该方法能够使As(Ⅲ),As(Ⅴ),MMA和DMA等四种形态的砷完全分离。检出限可达到As(Ⅲ)1.0μg.L-1,As(Ⅴ)2.3μg·L-1。该方法适用于金矿石、尾矿石淋出液及金矿周遍环境水体中不同价态砷和总砷的定性和定量测定。
|
| 关 键 词： | 离子色谱-氢化物发生-原子荧光联用方法 砷形态分析 金矿尾矿 |
| 文章编号： | 1000-0593（2008）01-0206-03 |
| 收稿时间： | 2006-08-06 |
| 修稿时间： | 2006-11-16 |
Application of IC-HG-AFS Determination Method for Arsenic in Gold Mine Tailings |
| |
| LUO Xi-ming,ZHAO Li-qian,XU Bu-xian.Application of IC-HG-AFS Determination Method for Arsenic in Gold Mine Tailings[J].Spectroscopy and Spectral Analysis,2008,28(1):206-208. |
| |
| Authors: | LUO Xi-ming ZHAO Li-qian XU Bu-xian |
| |
| Institution: | School of Water Resource & Environment, China University of Geoscience, Beijing 100083, China. lxming@cugb.edu.cn |
| |
| Abstract: | A method for the determination of species (arsenite (As(III)), arsenate(As(V)), monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA)) in solution samples of gold mine tailings has been applied. The analytical method used was ion chromatography coupled on-line to atomic fluorescence spectroscopy through hydride generation with the mobile phase (NH4)2 HPO4 (pH 6. 0). The recovery with the standard solution of arsenic added into the water samples was very good (recovery 95%-109%). The arsenic species were separated completely; arsenic speciation was stable and the detection limits were very low: 1.0 microg x L(-1) As(III) and 2.3 microg x I(-1) for As(V). The method is fit for the determination of arsenic species in the solution of gold mine, gold mine tailings and the polluted water around the gold mine. |
| |
| Keywords: | Ion chromatography-hydride generation-atomic fluorescence spectrometry(IC-HG-AFS) Arsenic speciation analysis Gold mine tailings |
| 本文献已被 万方数据 等数据库收录！ |
|
