甘露醇对石墨存在下Cs2BO2+离子热电离质谱法测定硼同位素的影响

摘要

The effect of mannitol on isotopic measurement of boron based on Cs2BO2+ ion with graphite loading has been studied. The result suggest the measured 11B/10B ratios in the presence of mannitol are significantly higher than in the loading graphite alone. The ionization and evaporation condition for Cs2BO2+ -graphite method may be change d by the formation of mannitol-boron complex.%对石墨涂样检测Cs2BO2+离子条件下甘露醇对硼同位素测定的影响进行了研究，结果 表明在甘露醇存在下11B/10B比值明显高于只有石墨存在时的比值。硼-甘露 醇络合物的形成可能改变了Cs2BO2+-石墨方法的电离和蒸发条件。