LC-MS/MS法测定清洗剂中全氟辛磺酸类物质总量  

Study on testing the total content of perfluorooctane sulfonates in detergent by LC-MS/MS

作　　者：韩大川[1] 卢利军[1] 周晓[1] 张慧玲[2] 牟峻[1] 马书民[1] 张代辉[1] 

机构地区：[1]吉林出入境检验检疫局,吉林长春130062 [2]山东出入境检验检疫局,山东青岛266071

出　　处：《化学试剂》2010年第1期43-45,96,共4页Chemical Reagents

基　　金：国家质检总局重点课题资助项目(2006IK062)

摘　　要：样品采用液液分配经甲醇提取,提取液经浓缩定容后,用液相色谱-质谱/质谱仪采用多反应监测（MRM）进行检测。通过PFOS类物质共有的特征离子作为检测目标离子进行定性,外标法测定PFOS类物质的总含量。PFOS标液在0.01~1.0μg/mL范围内浓度与响应值有良好的线性关系。方法的检测低限是0.01 mg/kg,回收率为76.5%~110.0%,相对标准偏差为5.69%~15.75%。The test sample was extracted by liquid-liquid partition with methanol,and the extract was concentrated and diluted to a fixed volume suitable for the measurement using the multiple reaction monitoring（MRM） mode by LC-MS-MS.The featured ions of PFOS were scanned as tested targets with the external standard for qualifying PFOS and quantify the total content of PFOS.The PFOS standard solution showed a linear relationship to the response value at a concentration range of 0.01～1.0 μg/mL.The detection limit of this method was 0.01 mg/kg,the recovery ranges were 76.5%～110.0%,and the relative standard deviation was in the range of 5.69%～15.75%.

关 键 词：清洗剂 全氟辛磺酸 液相色谱串联质谱法 

分 类 号：O656[理学—分析化学]