This article summarizes the followings:the principle of NTIMS, the choice of loading reagents, the isobaric interference and the application of boron as a geochemical tracing tool.

• 作者对采用负热电离法测定硼同位素组成的原理、发射剂的选用、同质异位素的干扰以及在硼同位素地球化学研究中的应用等问题进行了总结。