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氦同位素锂辉石标准物质的研制 预览

Preparation and Calibration of Reference Material for Helium Isotope
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摘要 Two spodumene samples for helium isotope standard were prepared. According to the preparation criterion on first grade national standard materials, homogeneity tests of helium contents and isotope compositions of two samples were carried out using the heat melt method. The homogeneity tests and certification analysis show that 4He contents and 3He/4He ratios of two reference material samples are homogeneous. Afterward two standard samples were distributed to four laboratories for cooperative fixed values. All data of various laboratories submit to normal distribution and not abnormity values. The average values of each laboratory are recommended as values of two spodumene samples for helium isotope standard.
作者 李延河 宋鹤彬 乐国量 LI Yan-he  SONG He-Bin  YUE Guo-liang 
出处 《质谱学报》 EI CAS CSCD 2005年第z1期 87-88,共2页 Journal of Chinese Mass Spectrometry Society
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