石墨炉原子吸收光谱法测定轻质油中痕量砷时样品前处理方法的探讨

Discussion of Sample Pretreatment Methods for Determination of Traces of As in Light Oil with GFAAS

研究了轻质油中痕量砷的几种样品处理方法。实验表明,石墨炉原子吸收光谱法测定时,用碘-甲苯和H2O2-HNO3相结合处理轻质油样品较为合适,萃取效率可达90％。并对影响萃取测定的其它因素作了初步探讨。

The determination of traces of arsenic in light oil by GFAAS was described. The analytical results show it was suitable with the methods of combine I2 - Toluene and H2O2- HNO3 to treat oil sample. The efficiency of extraction is 90 % 。