你先看这个讨论帖
http://bbs.instrument.com.cn/shtml/20111029/3614277/再看这本书 Nelms, S. M., 2005.
Inductively Coupled Plasma Mass Spectrometry Handbook. Blackwell Publishing Ltd., Oxford, UK.
http://bbs.instrument.com.cn/download.asp?ID=265883PDF第 75页 2.2.2.7 Interferences, matrix effects and inter-element fractionation in isotope ratio measurement
PDF第174页 4.9 Isotope ratio measurements