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Non‐Matrix‐Matched Determination of Th‐Pb Ages in Zircon, Monazite and Xenotime by Laser Ablation‐Inductively Coupled Plasma‐Mass Spectrometry
Author(s) -
Luo Tao,
Zhao He,
Li Qiuli,
Li Yang,
Zhang Wen,
Guo Jingliang,
Liu Yongsheng,
Zhang Junfeng,
Hu Zhaochu
Publication year - 2020
Publication title -
geostandards and geoanalytical research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.037
H-Index - 73
eISSN - 1751-908X
pISSN - 1639-4488
DOI - 10.1111/ggr.12356
Subject(s) - monazite , zircon , thermal ionization mass spectrometry , geology , inductively coupled plasma mass spectrometry , baddeleyite , mineralogy , analytical chemistry (journal) , mass spectrometry , geochemistry , chemistry , ion source , environmental chemistry , ion , organic chemistry , chromatography
Key Points Matrix effects on Th‐Pb dating by LA‐ICP‐MS were dramatically suppressed by introduction of a small amount of water vapour before the ablation cell. Addition of nitrogen and oxygen had negligible effect on the suppression of matrix effects for Th‐Pb dating. Th‐Pb ages of zircon, monazite and xenotime were accurately determined using NIST SRM 610 as a calibrator with the water vapour‐assisted method.