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《化学分析计量》 2019年第02期
DOI:10.3969/j.issn.1008-6145.2019.02.010
微波消解-电感耦合等离子体发射光谱法测定多金属矿中10 种主次元素
秦明1,朱尧伟2,班俊生2,杨惠玲2
1. 河南省有色金属矿产探测工程技术研究中心,河南省有色金属地质矿产局第三地质大队,郑州 450016; 2. 河南省有色金属地质矿产局联合实验室,郑州 451464 
Determination of 10 major and minor elements in polymetallic ore by microwave digestion-ICP-AES
QIN Ming1, ZHU Yaowei2, BAN Junsheng2, YANG Huiling2
1. Henan Nonferrous Metal Mineral Exploration Engineering Research Center, The 3th Geological Brigade of Henan Province Non-Ferrous Metals Geological Mineral Resoures Bureau, Zhengzhou 450016, China;
2. United Labortories of Henan Nonferrous Geology & Mineral Resources Bureau, Zhengzhou 451464, China 
摘要:建立微波消解-电感耦合等离子体发射光谱法测定多金属矿中的铜、铅、锌、钼、锰、钾、钠、钙、镁、铁 10 种主次元素。称量后的地质样品放入微波消解罐中,加入硝酸、氢氟酸,进行微波消解,再加入硼酸溶液和纯水 稀释到一定重量后,采用等离子体发射光谱法测定主次元素的含量。各元素的质量浓度在各自的范围内与光谱 强度呈良好的线性关系,相关系数均大于0.999,方法检出限为0.000 2%~0.008 5%。测定结果的相对标准偏差为 0.97%~5.52%(n=9),加标回收率为94.80%~104.60%。该方法简便、快速、准确、可靠,具有应用价值。  
Abstract:A method for the determination of 10 major and minor elements of copper, lead, zinc, molybdenum, manganese, potassium, sodium, calcium, magnesium and iron in polymetallic ore by microwave digestion-inductively coupled plasma atomic emission spectrometry(ICP-AES) was established. Weighed geological samples were put into the microwave digestion tank, nitric acid and hydrofluoric acid were added for microwave digestion, boric acid solution and pure water were diluted to a certain weight. The content of major and minor elements were determined by plasma emission spectrometry. The mass concentration of each element had a good linear relationship with the spectral intensity in their respective ranges, the correlation coefficients were more than 0.999, the detection limits were 0.000 2%-0.008 5%. The relative standard deviations were 0.97%-5.52%(n=9), and the recoveries were 94.80%-104.60%. The method is simple, rapid, accurate and reliable, and it has application value. 
关键词:微波消解;电感耦合等离子体发射光谱法;重量法;多金属矿;主次元素 
Keywords:microwave digestion; ICP-AES; solution weighing; polymetallic ore; major and minor elements 
基金:2016 年度河南省“两权价款”地质科研类项目( 豫财招标采购–2015–1992–03) 
本文引用格式:
秦明,朱尧伟,班俊生,等. 微波消解- 电感耦合等离子体发射光谱法测定多金属矿中10 种主次元素[J]. 化学分析计量,2019,28(2):45-49.
QIN M,ZHU Y W,BAN J S,et al. Determination of 10 pmajor and minor elements in polymetallic ore by microwave digestion-ICP-AES[J]. Chemical analysis and meterage,2019,28(2):45-49. 

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