冷蒸气原子吸收光谱法测定石脑油中汞含量  

Determination of Trace Mercury Content in Naphtha by Cold Vapour-Atomic Absorption Spectroscopy

作　　者：陈信悦[1] 于孝展[1] 孙延伟[1] 吴建国[1] 

机构地区：[1]辽宁出入境检验检疫局技术中心

出　　处：《光谱实验室》2008年第5期824-827,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：基金项目:辽宁检验检疫局科研(LK23-2005)

摘　　要：在过量的氯化亚锡还原石脑油中的汞至汞蒸气,用冷蒸气原子吸收光谱仪快速测定石脑油中汞含量。结果表明,汞含量在0—50μg/L范围内线形关系良好,r=0.999,RSD为1.48%—1.56%,回收率97.40%—101.0%。该法与UOP938-2000标准所测得结果一致。Mercury vapour in the naphtha was reduced under reaction with more reductant Tin（ Ⅱ ）chloride and rapidly determined by cold vapour Atomic absorption spectroscopy. The linear range is 0-50μg/L with relative standard deviation of 1.48%-1.56% and regression coefficient of 0. 999,the recovery is 97.40%-101.0%. The result is in accord with UOP 938-2000.

关 键 词：石脑油 汞含量 冷蒸气原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]