岩矿测试2025，Vol.44Issue(6)：1145-1155,11.DOI:10.15898/j.ykcs.202504110083
过氧化钠熔融-电感耦合等离子体质谱法测定铅铋冶炼渣中的稀散元素
Determination of Scattered Elements in Lead-Bismuth Smelting Slag by Inductively Coupled Plasma-Mass Spectrometry with Sodium Peroxide Melting
摘要
Abstract
Scattered elements have become indispensable strategic resources,and recycling from lead-bismuth smelting slag can alleviate the problem of resource shortage.Lead content in the lead-bismuth smelting slag ranges between 28.12%and 29.45%,primarily existing as insoluble lead sulfate.X-ray fluorescence spectrometry(XRF)and X-ray diffraction(XRD)were employed to analyze the matrix characteristics of lead-bismuth smelting slag,providing guidance for sample pretreatment methods and optimization of ICP-MS analytical conditions.A method for the accurate determination of 71Ga,73Ge,78Se,111Cd,115In,205Tl and 125Te by ICP-MS was established through sodium peroxide melting and dilute sulfuric acid extraction.The experimental conditions such as flux dosage,melting time and leaching solution were optimized.Experimental results show that the correlation coefficient(r)value of the scattered elements is 0.9991-0.9999,method detection limit is 0.01-0.02μg/g,and quantitative limit is 0.02-0.07μg/g.The method was applied to GBW07235 and GBW07236,and the absolute value of the standard error(RE)ranged from 0 to 11.11%,and the relative standard deviation(RSD,n=7)was between 2.12%and 4.17%.This method is also applicable to the determination of scattered elements in actual samples of lead and bismuth slag,and relative results are in accordance with the recoveries of 90%-110%specified by DZ/T 0130-2006.关键词
铅铋冶炼渣/稀散元素/过氧化钠/电感耦合等离子体质谱法Key words
lead-bismuth smelting slag/scattered elements/sodium peroxide/inductively coupled plasma-mass spectrometry分类
化学化工引用本文复制引用
刘闫,孙启亮,王晨,倪文山,毛香菊,肖芳..过氧化钠熔融-电感耦合等离子体质谱法测定铅铋冶炼渣中的稀散元素[J].岩矿测试,2025,44(6):1145-1155,11.基金项目
中国地质调查局地质调查项目(DD20243355) （DD20243355）
国家自然科学基金项目(22106148) （22106148）
