摘要
为建立汽油中痕量铅的等离子体质谱的同位素比值分析方法,考察使用了不同的样品处理手段处理汽油样品。结果表明,V(HNO3)+V(H2O)=1+10体系萃取汽油,为汽油中同位素比值分析的最佳方法,其操作安全简单,方便快速,且灵敏度高,从而有效保证同位素比值分析的精确度。利用等离子体质谱仪对汽油中痕量铅的实际含量进行了分析,为配合城市大气铅污染来源调查工作提供了一种极为快速简捷、安全有效的手段。
The pretreatment method of gasoline samples for trace lead concentration and lead isotope ratio determination by inductively coupled plasma mass spectrometery was studied.The result showed that the use of 1∶10 nitric acid as extraction solvent is best suitable for the precise isotope ratio measurement,which has the advantage of handling convenience and highly sensitivity.The proposed method was also successfully applied to the determination of lead concentration in gasoline,avoiding the time-consuming micro...
出处
《广东微量元素科学》
CAS
2008年第7期44-49,共6页
Trace Elements Science
基金
深圳市科技计划项目(医疗卫生类)(项目编号:200702151)
关键词
汽油
铅含量
铅同位素比
电感耦合等离子体质谱
gasoline
lead content
lead isotope ratio
inductively coupled plasma mass spectrometery
