铀矿地质2017，Vol.33Issue(4)：228-233,6.DOI:10.3969/j.issn.1000-0658.2017.04.006
热电离飞行时间质谱法用于铀矿勘查的铅同位素示踪
Lead Isotopic Tracing for Uranium Exploration by Thermal Ionization Time-of-flight Mass Spectrometry
摘要
Abstract
Lead isotopic tracing is an effective method for uranium exploration,but it was not widely used due to the expensive instrument.The successful development of thermal ionization time-of-flight mass spectrometry (TI-TOF-MS)provided the possibility of using lead isotopes tracing economically in uranium exploration.Based on the laboratory-made economic TI-TOF-MS,the samples collected from the drill hole of uranium deposit in North China was analyzed for lead isotopic tracing experiment.The method of sample digestion,separation and enrichment of lead was introduced at first,and then the analysis & data processing procedure.TI-TOF-MS has an accuracy of 0.94%,0.37% and 0.14% for the measurement the ratio of 204 Pb/206 Pb,207 Pb/206 Pb and 208 Pb/206 Pb,which met the requirement of lead isotopic tracing.The application results suggest that the composition of lead isotopes by TI-TOF-MS can be used as the sign for uranium exploration.关键词
热电离飞行时间质谱法/铅同位素示踪/铀矿勘查Key words
TI-TOF-MS/lead isotopic tracing/uranium exploration分类
化学化工引用本文复制引用
谢胜凯,郭冬发,谭靖,刘桂方,范增伟,李伯平,王晓明..热电离飞行时间质谱法用于铀矿勘查的铅同位素示踪[J].铀矿地质,2017,33(4):228-233,6.基金项目
本文由国家重大科学仪器设备开发专项项目 (No.2012YQ250003)资助. （No.2012YQ250003）
