甘露醇对石墨存在下Cs_2BO_2~ 离子热电离质谱法测定硼同位素的影响

Effect of Mannitol on Isotopic Measurement of Boron by Thermal -ionization Mass Spectrometry Based on Cs_2BO_2~ Ion with Graphite Loading

中文关键词:  硼,同位素测定,甘露醇,热电离

英文关键词:Boron,Isotope measurement,Mannitol,Thermalionization

中文摘要:

      对石墨涂样检测 Cs2 BO2 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/ 10 B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 Cs2 BO2 -石墨方法的电离和蒸发条件。

英文摘要:

      WT5BZ]The effect of mannitol on isotopic measurement of boron based on Cs 2BO 2 ion with graphite loading has been studied. The result suggest the measured 11 B/ 10 B ratios in the presence of mannitol are significantly higher than in the loading graphite alone. The ionization and evaporation condition for Cs 2BO 2 graphite method may be changed by the formation of mannitol boron complex.