摘要
这是一篇矿物分析领域的论文。采用盐酸、硝酸、氢氟酸、硫酸于聚四氟乙烯密闭消解罐中加热消解,酒石酸—稀盐酸介质提取,以电感耦合等离子体光谱法同时测定溶液中锂、铍、铌和钽。Li和Be在0~50μg/m L、Nb_(2)O_(5)和Ta_(2)O_(5)在0~100μg/m L范围内呈良好测现性关系,校准曲线相关系数r均大于0.9999,方法检出限分别为0.1μg/g、0.5μg/g、1.0μg/g、0.1μg/g。用于实际样品分析,加标回收率为94.6%~105.6%,锂、铍、铌、钽的相对标准偏差(n=11)分别为1.08%~7.04%、0.65%~13.06%、2.59~7.32%、2.02%~7.60%,用标准样品分析,测定值与认定值相符。
This is an essay in the field of mineral analysis.The ore sample was digested with Hydrochloric acid、nitric acid、hydrofluoric acid、sulfuric acid in a closed polytetrafluoroethylene digestion tank.Hydrochloric acid and tartaric acid medium is used for extraction.The Lithium、Beryllium、niobium and tantalum in the prepared solution were determined by inductively coupled plasma atomic emission spectrometry(ICP-AES).The emission spectral intensity of Lithium、Beryllium、niobium and tantalum showed a good linear relationship withρ(Li)andρ(Be)in the range of 0~50μg/m L、ρ(Nb_(2)O_(5))andρ(Ta_(2)O_(5))in the range of 0~100μg/m L.The correlation coefficients of the calibration curve for Lithium、Beryllium、niobium and tantalum were both 0.9999.The detection limits for Lithium、Beryllium、niobium and tantalum were 0.1μg/g、0.5μg/g、1.0μg/g、0.1μg/g,respectively.The proposed method was applied to the determination of the actual sample giving recovery rate of 94.6%~105.6%and the relative standard deviations(RSD n=11)of Lithium、Beryllium、niobium and tantalum are1.08%~7.04%、0.65%~13.06%、2.59~7.32%、2.02%~7.60%,respectively.This method was applied to the analysis of the standard sample and the results were consistent with the certified values.
作者
雷勇
勾钰霞
易建春
赵朝辉
潘刚
余滔
Lei Yong;Gou Yuxia;Yi Jianchun;Zhao Chaohui;Pan Gang;Yu Tao(Institute of Multipurpose Utilization of Mineral Resources,Technology Innovation Center for Comprehensive Utilization of Strategic Minerals Resources,Ministry of Natural Resources,Chengdu,Sichuan,China)
出处
《矿产综合利用》
CAS
北大核心
2023年第4期205-210,共6页
Multipurpose Utilization of Mineral Resources
关键词
矿物分析
密闭消解
酒石酸
锂
铍
铌
钽
电感耦合等离子体原子发射光谱法
Mineral analysis
Closed digestion
Tartaric acid
Lithium
Beryllium
Niobium
Tantalum
Inductively coupled plasma atomic emission spectrometry
