ICP-AES同时测定锑矿石样品中的5种伴生元素

Determination of Five Kinds of Associated Elements in Stibium Ore by Inductively Coupled Plasma Atomic Emission Spectrometry

文章针对锑矿石中锑元素易水解易挥发的特性探讨了用硝酸分解有机物与硫化物,逆王水低温溶解样品,电感耦合等离子体发射光谱对锑矿石中Cu 324.754nm、Pb220.353nm、Zn2 13.856 nm、Sb 231.147nm、As 189.042 nm同时测定的仪器工作条件及各元素的分析谱线背景校正方法,基本解决了基体干扰和待测元素之间的干扰问题.建立的方法用于锑矿石样品中铜铅锌锑砷的分析,方法检出限为铜0.0002％、铅0.0014％、锌0.0001％、锑0.002％、砷0.003％,相对标准偏差（RSD,n=12）＜1％,加标回收率为97.2 ％～103.1％.通过与其它分析检测方法比对,结果吻合,且可在线同时测定多种元素,检测线性范围宽,快速简捷,准确度高.

The paper in the antimony antimony element is easily hydrolyzed volatile with nitric acid to decompose organic matter and sulfide are discussed, Inverse aqua regia dissolving sample at low temperature, inductively coupled plasma emission spectrum of antimony in Cu 324.754 nm Pb 220.353 nm Zn 213.856 nm Sb 231.147 nm As 189.042 nm and measure the working conditions of instrument and analysis spectral lines of each element background correction methods, basic solved the matrix interference and the interference problem between element under test. Basic conditions of Copper, plumbum, Zinc, Stibium and Arsenic elemental analysis of in Stibium Ore were by Inductively Coupled Plasma Atomic Emission Spectrometry. Appropriate spectral line and background correction methods were determined. The interference between the analyte and matrix was settled. The method can be used for detection of Copper, Plumbum, Zinc, Stibium and Arsenic elemental analysis of in Stibium Ore. The detection limit was 0.0002 % for copper, Plumbum for 0.0014 %, Zinc for 0.0001%, 0.002 % for Stibium, 0.003 % for Arsenic. The relative standard deviation （RSD, n=12）〈 1%, and the recovery rate was 97.2 %-103.1%. With other analytical detection methods compared, the result is agreed. The method can be determined simultaneously multipie elements, The method has wide linear range, the advantages of rapidity, simplicity and high accuracy.