溶剂萃取原子吸收光谱法测定头蜡中铅铬镉镍钴  

Determination of Pb(Ⅱ), Cr(Ⅲ), Cd(Ⅱ), Ni(Ⅱ), Co(Ⅱ) in pomade with solvent extraction by atomic absorption spectrometry

作　　者：侯晋[1] 赵金伟[2] 沈京红[1] 丁黎[1] 

机构地区：[1]南通出入境检验检疫局,南通226005 [2]江苏出入境检验检疫局,南京210001

出　　处：《分析试验室》2003年第2期27-29,共3页Chinese Journal of Analysis Laboratory

摘　　要：用高压溶样弹将头蜡用HNO3 H2 O2 溶解 ,经 0 .0 5 0 0mol/L 8 羟基喹啉氯仿溶液萃取 ,用原子吸收光谱法测定痕量铅、铬、镉、镍和钴。方法回收率分别为99.0 %、99.5 %、96.0 %、1 0 2 %和 98.5 % ,RSD分别为 2 .9%、3.0 %、4.1 %、3.8%和 2 .0 %。A method for dertermination of Pb(Ⅱ), Cr(Ⅲ) , Cd(Ⅱ),Ni(Ⅱ) and Co(Ⅱ) in pomade was developed. The sample was digested and dissolved with HNO 3 H 2O 2 in polytetra fluorethylene sealed vessel under pressure. The oxine extraction flame atomic absorption spectrometric method was applied to the dertermination.The recoveries for Pb(Ⅱ), Cr(Ⅲ), Cd(Ⅱ), Ni(Ⅱ) and Co(Ⅱ) were 99.0%, 99.5%, 96.0%, 102% and 98.5% with RSD of 2.9%, 3 0%, 4 1%,3.8% and 2.0%, respectively. The method was applied to the analysis of pomade with satisfactory results.

关 键 词：原子吸收光谱法 溶剂萃取 铅 铬 镉 镍 钴 头蜡 检测 化妆品 

分 类 号：O657.31[理学—分析化学] TQ658.31[理学—化学]