摘要
采用不同氘和^(18)O对含量的水样称重配制了一组4种氢氧同位素标准水样,并分装于10cm^3的玻璃安瓿内。通过质谱法与VSMOW、SLAP直接比对测得此四种标准水样的δ_(VSMOW)值,并作了样品均匀性和稳定性的检测,均符合要求。此四种氢氧同位素标准水样已被批准为国家一级标准物质。
Four reference water samples with hydrogen and oxygen isotopes are prepared by mixing the water samples with different deuterium and 18O contents.Each of them is sealed into glass ampoules of 10cm3 in volume for convenient uses.The δ Values in permillage are measured by mass-spectrometer and normalized on the VSMOW-SLAP scale.They have been approved as national reference materials and certificaned with code numbers of GBW04401 to 04404,respectively.
出处
《计量学报》
CSCD
1991年第2期85-91,共7页
Acta Metrologica Sinica
