岩矿测试2024，Vol.43Issue(6)：858-865,8.DOI:10.15898/j.ykcs.202409110188
偏硼酸锂和四硼酸锂碱熔-电感耦合等离子体发射光谱法测定海域砂矿中的锆和钛
Determination of Zirconium and Titanium in Marine Placer Deposits by ICP-OES with Alkali Fusion of Lithium Metaborate-Lithium Tetraborate Composite Flux
摘要
Abstract
The marine placer deposits of Hainan Island contain abundant zirconium(Zr)and titanium(Ti)resources,which hold significant development potential.An alkali fusion-inductively coupled plasma-optical emission spectrometry method based on a composite flux of lithium metaborate and lithium tetraborate(m:m=33:67)was developed for determining Zr and Ti in marine placers.In this method,the sample was fused with 0.8g flux at l000℃ for 15min.After cooling,the molten substance was poured into a dilute acid and dissolved by oscillation in a constant temperature oscillator.This approach simplifies the operation process by avoiding the complexity associated with high-temperature procedures while enhancing melt dissolution techniques.The detection limit for Zr in this method is 0.40pg/g while that for TiO2 is 0.0025％.Based on standard materials,the relative standard deviation(RSD)of Zr ranges between 1.0％-3.5％;RSD of TiO2 ranges between 0.7％-3.3％.These precision values align with quality management standards set forth by geological and mineral laboratory testing.The method is suitable for rapid continuous analysis of Zr and Ti in marine placer deposits.关键词
海域砂矿/碱熔/偏硼酸锂-四硼酸锂熔剂/电感耦合等离子体发射光谱法/锆/钛Key words
marine placer deposits/alkali fusion/lithium metaborate-tetraborate composite flux/inductively coupled plasma-optical emission spectrometry/zirconium/titanium分类
化学化工引用本文复制引用
张逸君,张宇航,陈艳,邓焱,王佳翰..偏硼酸锂和四硼酸锂碱熔-电感耦合等离子体发射光谱法测定海域砂矿中的锆和钛[J].岩矿测试,2024,43(6):858-865,8.基金项目
中国地质调查局地质调查项目"金矿等战略性矿产实验测试技术支撑与服务"(DD20242769) （DD20242769）
