摘要
采用不同氘含量的水样称重配制了一组7种氢同位素标准水样,并分装于2cm^3的玻璃安瓿内。通过质谱法与VSMOW、SLAP直接比对,测得此7种标准水样的δ_(VSMOW)~D值,并做了样品平均性和稳定性的检测。这7种氢同位素标准水样已被批准为国家二级标准物质。
Seven reference water samples of hydrogen isotope are prepared bymixing the water samples with different deuterium contents.Each of them is sealed into a glass ampoule of 2cm3 in volume for the convenience of use.The d values in permillage are measured by mass-spectrometer and normalized on the VSMOW-SLAP scale.The homogeneity and isotopic abundance stability of the water samples are found quite satisfactory.They have been approved as the secondary reference materials,and certificated with code numbers of GBW(E)040001 to 040007,respectively.
出处
《计量学报》
CSCD
1991年第1期58-63,共6页
Acta Metrologica Sinica
