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Relationship between CAIs and chondrules: A case study of a compound chondrule from the Allende (CV3) meteorite
chondrule calcium-aluminium rich inclusion CV chondrite oxygen isotopes silicon isotopes
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2017/4/10
We report the mineralogy, petrology, major, minor and trace element geochemistry, O and Si isotopes of a complex
compound chondrule from the Allende meteorite. The chondrule contains zones of refract...
CAIS法校正ICP-MS测定血铅浓度及同位素比值基体效应的研究
CAIS 基体效应 铅 同位素比值
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2009/5/11
通过模拟全血基体，考察了基体效应对于ICP-MS测定铅浓度及铅同位素比值的影响，并应用CAIS法(common analyte internal standardization)对基体效应进行了校正。实验表明CAIS法适用于多元素复杂基体的校正，校正前及经传统内标法和CAIS法校正后铅浓度测量值与真值之间的相对误差分别为20％，8％，2％，而基体效应对铅同位素比值的影响及其校正作用均不明显;Tl和...