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Potential Orthopyroxene, Clinopyroxene and Olivine Reference Materials for In Situ L ithium Isotope Determination
Author(s) -
Su BenXun,
Gu XiaoYan,
Deloule Etienne,
Zhang HongFu,
Li QiuLi,
Li XianHua,
Vigier Nathalie,
Tang YanJie,
Tang GuoQiang,
Liu Yu,
Pang KwanNang,
Brewer Aaron,
Mao Qian,
Ma YuGuang
Publication year - 2015
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/j.1751-908x.2014.00313.x
Subject(s) - analytical chemistry (journal) , forsterite , isotope , olivine , mass spectrometry , laser ablation , in situ , inductively coupled plasma mass spectrometry , chemistry , mineralogy , laser , environmental chemistry , physics , organic chemistry , chromatography , quantum mechanics , optics
Over 1400 electron probe and 700 ion probe microanalyses were performed on eleven mineral separates to evaluate their potential as reference materials for in situ L i isotopic determination. Our results suggest the homogenous distributions of major elements, L i and its isotopes for each sample. Hence, these samples are suitable to be used as reference materials for in situ measurements of L i abundance and L i isotopes by secondary ion mass spectrometry ( SIMS ) or laser ablation‐inductively coupled plasma‐mass spectrometry ( LA ‐ ICP ‐ MS ). These samples have the advantage of mitigating probable matrix effects during calibration owing to the wide range of compositions. The effect of composition on the δ 7 L i of olivine measured by SIMS is a linear function of composition, with δ 7 L i increasing by 1.0‰ for each mole per cent decrease in forsterite component.