电感耦合等离子体原子发射光谱法(ICP-AES)测定富铜(银)矿石中的7种金属元素  

Determination of the Seven Metallic Elements in the Rich Cu(Ag) ore Rock by ICP-AES

作　　者：孙媛媛[1] 孙友宝 

机构地区：[1]常州工程职业技术学院材料工程技术系,江苏常州213164 [2]岛津企业管理(中国)有限公司全球应用技术支持中心,上海200052

出　　处：《山东化工》2015年第7期82-83,共2页Shandong Chemical Industry

基　　金：2014年度常州工程职业技术学院院级科研立项课题(KJ14311)

摘　　要：本文采用四酸(硝酸、盐酸、氢氟酸、高氯酸)混合溶矿前处理方法,使用电感耦合等离子体原子发射光谱法(ICP-AES)同时测定了富铜(银)矿石样品中Al、Cu、Fe、Mn、Mg、S和Zn 7个元素含量。实验过程中通过摸索样品前处理方法和优化仪器工作条件,选择了最佳的样品前处理条件和最佳分析条件。实验结果表明,该方法测定结果精密度高,RSD不大于3.0%(n=6);线性相关系数良好r>0.9999 3;方法检出限低可满足微量元素的检测需求;测定结果准确,检测结果基本都在测定结果范围内,符合地质矿产中多种主微量金属元素的分析要求。This paper using the HF-HCl-HNO3 system with high-pressure closed digestion for samples pre-treatment, and utilizing Inductively Coupled Plasma - Atomic Emission Spectrometry （ ICP - AES ） for determination the 7 multielements in the rich Cu（ Ag）ore rock. Sample pretreatment and analytical conditions were optimized and the best spectral lines were selected. The experimental results show that,good linear relationship with linear correlation coefficient r〉0.9999 3. The precision of RSD less than 3%（n =6）,and the detection limits of these ten elements are low. The quantitation values matched the certified value of rich Cu（ Ag）ore rock reference material GBW07164. This method has the advantage of providing a simple,simultaneous determination of multiple elements,along with having a wide linearity range and low detection limit,which can be widely used in geological samples.

关 键 词：富铜(银)矿石 硫化物矿石 多元素测定 电感耦合等离子体原子发射光谱法 

分 类 号：O657.31[理学—分析化学]