离子色谱法测定化妆品中的无机阴离子  

Determination of inorganic anions in cosmetics by ion-chromatography

作　　者：屈静[1] 杨迎春[1] 王潇婷[1] 印红玲[1] 叶芝祥[1] 

机构地区：[1]成都信息工程学院资源环境系,四川成都610225

出　　处：《日用化学工业》2009年第2期141-144,共4页China Surfactant Detergent & Cosmetics

摘　　要：采用离子色谱电导检测器对多种化妆品中的无机阴离子(F-,Cl-,NO2-,Br-,NO3-,H2PO4-,SO42-)进行测定,得到了上述7种阴离子的线性范围和相关系数,检出限分别为:0.004 mg/kg,0.007 mg/kg,0.021 mg/kg,0.032 mg/kg,0.003 mg/kg,0.781 mg/kg和0.075 mg/kg。结果表明:相关系数均达到0.999 9以上,RSD均小于2%,样品加标回收率在96.3%～105.0%,样品中的共存离子对样品的测定无影响。A method to determine the content of several inorganic anions in various cosmetics by ion - chromatography was established. The determined anions included F^- , Cl^ -, NO2^- , Br^- , NO3^- , H2PO4^- , SO4^2-. The linear scope and corelation coefficients were obtained, and the detection limits of the seven anions were found as 0. 004 mg/kg, 0. 007 mg/kg, 0. 021 mg/kg, 0. 032 mg/kg, 0. 003 mg/kg, 0. 781 mg/kg, 0. 075 mg/kg respectively. Results showed that all corelation coefficients with respect to the seven anions are higher than 0. 999 9. All relative standard deviations（RSD）are less than 2% and the recoveries with additional standard lies between 96. 3% and 105. 0%. The co - existed ions in the cosmetics do not influence the analysis results.

关 键 词：化妆品 离子色谱 无机阴离子 

分 类 号：TQ658[化学工程—精细化工]