Laser ablation multicollector ICPMS determination of delta B-11 in geological samples

摘要

A method for the in situ single spot delta B-11 characterisation of geological materials with laser ablation multicollector ICP mass spectrometry (LA-MC-ICPMS) has been developed. The mass spectrometer was equipped with both Faradays and multiple ion counters. Four samples with different B contents (12-31,400 ppm) and isotopic compositions (sigma B-11 are between -8.71 and +13.6 parts per thousand) were analysed. Samples include the B4 tourmaline and 3 MPI-DING glasses (StHs6/80-G, GOR132-G and GOR128-G).