{"title":"多壁碳纳米管固相微萃取纤维制备及其在海水中多溴联苯测定中的应用","authors":"春华 马, 曦 陈, 良壁 陈, 海玲 陈, 金美 陈, 景斌 曾, 文锋 陈","doi":"10.1360/zb2009-39-12-1652","DOIUrl":"https://doi.org/10.1360/zb2009-39-12-1652","url":null,"abstract":"通过以 Nafion 为黏合剂、不锈钢丝为涂层载体, 制备了多壁碳纳米管固相微萃取纤维. 该纤维的制备方法快速、简便、成本低, 并具有热稳定性好 (300℃)、使用寿命长 (>100 次)、 对多溴联苯萃取效率高等特点. 研究优化了影响萃取及分离效率的解吸温度和时间、萃取时间、搅拌速度、盐度等实验条件, 进行了海水中多溴联苯的测定. 对一溴联苯的线性范围为 0.1~5.0 ng/mL, 而二溴联苯、三溴联苯、四溴联苯和五溴联苯的线性范围均为 0.01~5.0 ng/mL. 方法的检测限为 0.1~0.8 ng/L. 在优化的条件下分别测定了 0.1 和1 ng/mL 多溴联苯的海水加标样品, 回收率在 91.1%~107.3%之间, 相对标准偏差小于 12%. 该方法分析时间短、灵敏度高、操作简便, 适用于水样中多溴联苯的痕量分析.","PeriodicalId":515091,"journal":{"name":"SCIENTIA SINICA Chimica","volume":"39 12","pages":"1652-1657"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"http://engine.scichina.com/doi/pdf/7211a5e6df5d49e1b9e8a818fc5175fc","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148672206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0