用多接收电感耦合等离子体质谱仪(MG-ICPMS)测定了Cu同位素,实验研究中MC-ICPMS测定铜同位素组成的仪器质量歧视和同位素分馏校正采用SSB方法(Sample-Standard-Bracketing)。本研究主要包括①干扰的评估:同质异位素的影响与浓度效应;②ε^65Cu测定的重现性。
A method for analyzing Cu isotope compositions using multiple-collector inductively coupled plasma source mass spectrometry is presented in this paper. The instrumental mass fractionation is corrected using a “sample-standard bracketing” technique. The research includes ① the assessment of isobaric interference and effects of Cu concentration, and ② the repeatability of ^65Cu/^63Cu ratio measurements.