原子吸收光谱法测定汽油中铁含量的研究

Study on the determination of iron in gasoline by atomic absorption spectroscopy

汽油试样用碘—甲苯溶液处理,用氯化甲基三辛基铵—甲基异丁基酮溶液稀释后,用原子吸收光谱仪在248.3nm处测定试样中的铁含量。汽油中甲基叔丁基醚、甲基叔成基醚或乙醇的存在对铁含量的测定没有影响。

After gasoline sample is treated with iodine-toluene solution and TCMA.C1-MIBK solution ,its iron concentration is determined by AAS in 248.3nm. Existence of MTBE,TAME and alcohol in gasoline will not interfere in the determination of iron.