| 氢化物-原子吸收光谱法测定冶金企业废水中的砷 |
| |
| 引用本文： | 沙保峰,张小转,王静,唐思远,段文杰,赵亮. 氢化物-原子吸收光谱法测定冶金企业废水中的砷[J]. 化学研究, 2012, 23(4): 45-48 |
| |
| 作者姓名： | 沙保峰 张小转 王静 唐思远 段文杰 赵亮 |
| |
| 作者单位： | 1. 河南科学院 化学研究所,河南郑州,450002
2. 郑州大学 化学工程学院,河南郑州,450001 |
| |
| 基金项目： | 河南省重大公益性科研项目，国家自然科学基金青年基金，河南省国际科技合作项目 |
| |
| 摘 要： | 采用HNO3/HClO4(体积比10∶1)消解冶金废水样品,经6mol.L-1 HCl溶液酸化后,加入碘化钾(3%)、抗坏血酸(1%)及硫脲(1%)混合溶液进行还原,用氢化物-原子吸收光谱法(HG-AAS)测定了样品中的As含量.结果表明,该方法的检出限为0.297μg/L,相对标准偏差RSD为5.463%,样品加标回收率为93%～108%;其操作方便、选择性好、灵敏度高、干扰少,适合于复杂废水中微量和痕量As的测定.
|
| 关 键 词： | 氢化物产生 原子吸收光谱 冶金废水 砷 测定 |
Determination of arsenic in metallurgical wastewater by hydride generation atomic absorption spectrometry |
| |
| SHA Bao-feng , ZHANG Xiao-zhuan , WANG Jing , TANG Si-yuan , DUAN Wen-jie , ZHAO Liang. Determination of arsenic in metallurgical wastewater by hydride generation atomic absorption spectrometry[J]. Chemical Research, 2012, 23(4): 45-48 |
| |
| Authors: | SHA Bao-feng ZHANG Xiao-zhuan WANG Jing TANG Si-yuan DUAN Wen-jie ZHAO Liang |
| |
| Affiliation: | 1(1.Institute of Chemistry,Henan Academy of Sciences,Zhengzhou 450002,Henan,China; 2.School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China) |
| |
| Abstract: | Metallurgical wastewater was digested by the solution of HNO3/HClO4(volume ratio 10∶1)and acidified with 6 mol·L-1 HCl.Resultant digested and acidified wastewater sample was then reduced by potassium iodide(mass fraction 3%),ascorbic acid(1%) and thiourea(1%).Finally,hydride-atomic adsorption spectrometry(HG-AAS) was used to determine arsenic content in the treated wastewater sample.Results indicate that the established method has a detection limit of 0.297 μg/L,a relative standard deviation of 5.48%,and a standard addition recovery rate of 93%-108%.Besides,the present method is facile and has good selectivity and sensitivity as well as weak interferences,showing promising application for the determination of micro or trace As in complex wastewater. |
| |
| Keywords: | hydride generation atomic adsorption spectrometry metallurgical wastewater arsenic determination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
