岩矿测试Issue(3)：297-301,5.DOI:10.15898/j.cnki.11-2131/td.2015.03.006
五酸和硝酸微波消解法结合 ICP －OES 技术测定多金属矿中多种元素的对比研究
Determination of Multi-elements in Polymetallic Ores by ICP-OES with Mixed Acids and Nitric Acid Microwave Digestion
摘要
Abstract
Different pretreatment methods should be used for quick and accurate determination of major and minor elements in different types of polymetallic ores.In this study,five types of polymetallic ores including Pb-Zn,Sn, Mo,V,and Cu-Ni polymetallic ores were collected from typical metallogenic areas of China.Comparison of microwave digestion using mixed acids of hydrochloric-nitric-perchloric-hydrofluoric-sulphuric acids with digestion using nitric acid only was performed.Nine elements,Cu,Pb,Zn,Sn,W,Mo,Mn,Ti,and V were determined by the Inductively Coupled Plasma-Optical Emission Spectrometry technique. Analytical results of National Standards Reference indicate that digestion with a mixture of five acids has a long digestion time and can simultaneously determine the 6 elements of Cu,Pb,Zn,Mo,Mn,and V.Digestion with nitric acid needs only 1 h and can determine 4 elements,Cu,Pb,Zn,and Mo.Two methods have good accuracy and precision (RSD <5%)and low detection limits of 5.3 -30 mg/kg,which are suitable for application in geological analyses. However,neither of these two methods are suitable for analyzing Sn,W,and Ti,because these elements cannot be digested completely by acids.关键词
多金属矿/主次量元素/盐酸-硝酸-高氯酸-氢氟酸-硫酸微波消解/硝酸微波消解/电感耦合等离子体发射光谱法Key words
polymetallic ore/major and minor elements/hydrochloric acid-nitric acid-perchloric acid-hydrofluoric acid-sulphuric acid microwave digestion/nitric acid microwave digestion/Inductively Coupled Plasma-Optical Emission Spectrometry分类
化学化工引用本文复制引用
夏辉,王小强,杜天军,赵亚男,王书勤,杨惠玲..五酸和硝酸微波消解法结合 ICP －OES 技术测定多金属矿中多种元素的对比研究[J].岩矿测试,2015,(3):297-301,5.基金项目
河南省国土资源厅2013年度地质科研项目（2013－12）---多金属矿中多元素连续测定方法研究 （）
