固相微萃取-气相色谱联用技术测定水相中的邻苯二甲酸二(2-乙基)己酯  

Determination of di-(2-ethyl)hexyl phthalate in immersed plastic solution by solid phase microextration and gas chromatography

作　　者：刘振岭[1] 李聪辉[1] 吴采樱[2] 

机构地区：[1]新乡医学院化学教研室,新乡453003 [2]武汉大学化学系,武汉430072

出　　处：《分析试验室》2002年第1期71-73,共3页Chinese Journal of Analysis Laboratory

基　　金：国家商检局科学基金资助课题 (K0 32 - 1999)

摘　　要：利用顶空固相微萃取与气相色谱联用技术 (HS SPME GC)以富勒烯聚二甲基硅氧烷 (PSO C60 )固定相自制萃取头分析了塑料浸取液中的邻苯二甲酸二 ( 2 乙基 )己酯 (DEHP) ,并对萃取温度、离子强度、吸附时间和热解析时间进行了研究。结果显示 ,该方法的线性范围在 5 μg/L～ 5 0 0 μg/L ,检出限为 2 8μg/L,相对标准偏差为 4 8% (n =6)An optical fiber coated with stationary phase of polymeric fullerene was used to extract di (2 ethyl)hexyl phthalate(DEHP) in agueous solutions by solid phase microextraction gas chromatography. The operating conditions such as extraction temperature, ionic strength of solutions, absorption time and desorption time were studied. The results indicated that the working curve of DEHP was in the linear range from 5 μg/L to 500 μg/L with detection limit of 2.85μg/L and relative standard deviation of 4.8%.

关 键 词：固相微萃机 气相色谱法 邻苯二甲酸二(2-乙基)己酯 联用技术 水相 塑料浸取液 增塑剂 测定 水体污染 

分 类 号：X132[环境科学与工程—环境科学] TQ414.91[化学工程]