敞口酸溶-电感耦合等离子体发射光谱法测定多金属矿中的铝锰钾钠钙镁硫  

Determination of Al, Mn, K, Na, Ca, Mg, S in polymetallic ores by open acid solution-inductively coupled plasma emission spectrometry

作　　者：王力强[1,2] 魏双 王家松[1,2] 郑智慷 张楠[1,2] 刘义博 WANG Li-qiang;WEI Shuang;WANG Jia-song;ZHENG Zhi-kang;ZHANG Nan;LIU Yi-bo(Tianjin Center Laboratory of Geolofical Survey,China Geological Survey,Tianjin 300170,China;North China Center for Geoscience Innovation,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心实验室,天津300170 [2]华北地质科技创新中心,天津300170

出　　处：《地质调查与研究》2019年第4期259-262,共4页Geological Survey and Research

基　　金：中国地质调查局天津地质调查中心项目“地质调查标准化与标准制修订(2019-2021)(DD20190472)”.

摘　　要：以铜、铅、锌为主,富含多种有色金属的矿床,其所含矿物种类较多,通过矿石主量成分的分析,可对矿床评价与利用起到重要作用。多金属矿石的主量元素检测多采用传统化学方法进行各项指标的测定,需使用多种方法,实验过程复杂,且人为误差影响较大。本文建立了一种敞口酸溶-电感耦合等离子体发射光谱法测定多金属矿中的铝锰钾钠钙镁硫的方法。以氢氟酸-硝酸-高氯酸敞口酸溶样品,使用电感耦合等离子体发射光谱仪进行同时测定,标准曲线线性良好,相关系数均大于0.9990%,方法检出限为0.0003%~0.0041%,测定结果相对标准偏差(RSD)为0.82%~7.93%,方法准确、可靠,满足地质样品的分析需求,且测试过程简单,相较传统分析方法更加省时高效。Polymetallic ore deposits are mainly copper,lead and zinc deposits rich in a variety of nonferrous metals.It contains many kinds of minerals,which is of great significance to the evaluation and utilization of the ore by principal component analysis.Traditional chemical methods are often used in the determination of various indexes in the detection of main elements of polymetallic ores.An open acid solution-inductively coupled plasma emission spectrometry method for the determination of Al,Mn,K,Na,Ca Mg and Sulfur in polymetallic ores was developed.Hydrofluoric acid,nitric acid-perchloric acid exposure acid to dissolve the sample,using inductively coupled plasma emission spectrometer for measuring at the same time,the standard curve linear is good,the correlation coefficients are greater than 0.9990%,and the method detection limit is 0.0003%~0.0041%,The relative standard deviation(RSD)determination results is 0.82%~7.93%.The method is accurate,reliable and can meet the demand of the analysis of geological samples.The test process is simple,and compared with the traditional analysis method,can save time efficiently meet the demand of the analysis of geological samples.

关 键 词：铝 锰 钾 钠 钙 镁 硫 敞口酸溶 电感耦合等离子体发射光谱(ICP-OES) 

分 类 号：P618.2[天文地球—矿床学] P575[天文地球—地质学]