同位素稀释质谱法用于河水中钾的测量溯源性研究

Study of the Measurement Traceability of Potassium in River Water by Isotope Dilution Mass Spectrometry

本文简要介绍了化学测量溯源性和具有绝对测量性质的同位素稀释质谱法（IDMS）,并应用该法为国际测量评估计划（IMEP-9）河水样品中的钾提供可直接溯源到SI单位的标准值。

This article briefly described the chemical measurement traceability and isotope dilution mass spectrometry that has the potential to be primary method, and also described how to provide the Si-traceable value of K in river water by the means of IDMS.