固相微萃取采样器的开发及其在南海水体多环芳烃检测中的应用  

Development of a Solid-phase Microextraction Method for Sampling of Polycyclic Aromatic Hydrocarbons in South China Sea

作　　者：幸苑娜[1,2] 倪宏刚[3] 曾永平[1] 

机构地区：[1]中国科学院广州地球化学所有机地球化学国家重点实验室,广东广州510640 [2]中国科学院研究生院,北京100049 [3]北京大学深圳研究生院城市人居环境科学与技术重点实验室,广东深圳518055

出　　处：《分析测试学报》2009年第6期638-643,共6页Journal of Instrumental Analysis

基　　金：国家自然科学基金资助项目(20677061,U0633005)

摘　　要：对原有固相微萃取采样器进行改进,并将其用于珠江三角洲西部和东部2个水体基质较复杂的海湾(海陵湾和大亚湾)中16种优控多环芳烃(PAHs)的原位采样分析。研究表明,在分析的16种PAHs化合物中,2、3、4环PAHs均可检出,而5、6环PAHs均未检出。萘、芴、菲、荧蒽、芘5种检出化合物中,除萘外,均与文献中对珠江三角洲水体中PAHs的研究浓度无显著性差别。实验测得萘的质量浓度比传统方法的低,主要是因为固相微萃取水体原位采样技术无需有机溶剂参与样品富集过程,避免了有机溶剂对萘测定的干扰。A in-situ sampling device based on solid phase microextraction（SPME） was modified and used for the analysis of 16 polycyclic aromatic hydrocarbons （ PAHs）, such as phenanthrene, fluoranthene, fluorene, pyrene and naphthalene, etc, in Daya Bay and Hailing Bay located in Pearl River Delta. Among the 16 PAHs, two-, three- and four-ring PAHs could be detected, while no five- and six-ring PAHs. The concentrations of phenanthrene, fluoranthene, pyrene and fluorene showed no significant differences with related data obtained from the literatures. However, the concentration of naphthalene obtained from the present method was lower than that from traditional method. This could be ascribed that the present method didn＇t need use organic solvent to concentrate the sample, avoiding of the interference of organic solvent.

关 键 词：固相微萃取 原位采样 多环芳烃 珠江三角洲 

分 类 号：O625.15[理学—有机化学] TQ028.9[理学—化学]