金属铼带材料中的铼同位素组成和原子量  

The Isotopic Compositions of Rhenium in Rhenium Ribbon Materials with Different Origins

作　　者：肖应凯[1] 祁海平[1] 刘卫国[1] 

机构地区：[1]中国科学院青海盐湖研究所,西宁810008

出　　处：《质谱学报》1993年第4期38-42,共5页Journal of Chinese Mass Spectrometry Society

摘　　要：本文采用热电离质谱法精确测定了三种铼带材料中的铼同位素组成,平均^(185)Re/^(187)Re比值为0.59721±0.00008(2SD),由此计算得到铼的原子量为Ar(Re)=186.20693(6)The isotopic ratios of rhenium in three rhenium ribbon materials with different origins have been measured by thermal ionization mass spectrometry. The average ^(185)Re/^(187)Re ratio for three samples was determined to be 0.59721±0.00008(2SD) with a preeision of 0.013% (95% confidence limits), yielding a new value of the atomic weight of rhenium is 186.20693(6).

关 键 词：铼带 铼同位素组成 原子量 

分 类 号：O614.713[理学—无机化学]