島根大学総合理工学部地球資源環境学教室
島根大学大学院総合理工学研究科地球資源環境学教室
島根大学
島根大学地球資源環境学研究報告

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島根大学地球資源環境学研究報告 22 巻
2003-12-27 発行

Lead isotope analysis using TIMS following single column-single bead Pb separation

川原 岬
飯泉 滋
本文ファイル
c006022011.pdf ( 797 KB )
内容記述
This study examines separation of lead from igneous rock samples for Pb isotope ratio analysis,using a two-step single column-single bead separation technique.The separates were then analyzed by thermal ionization mass spectrometry(TIMS).The purification of lead achieved by the technique resulted in high Pb ionization efficiency in the TIMS analysis.Loading of the Pb separates and a normal silica-gel absorber on to single Ta filaments yielded signals that were stable for over 30 minutes.Analyses of six igneous rock standard samples produced by the Geological Survey of Japan agreed well with their published Pb isotope ratios.The single bead separation step is a versatile technique for purification of lead
contained in materials with complex matrices.
Doi
https://doi.org/10.24568/6122
Pages