固相(微)萃取-室温磷光联用技术及其应用  

Solid Phase Extraction and Room Temperat ure Phosphorimetry Coupling Technique and Its Application

作　　者：苏文斌[1] 朱若华[1] 强红[1] 谷学新[1] 

机构地区：[1]首都师范大学化学系,北京100037

出　　处：《光谱学与光谱分析》2004年第3期270-273,共4页Spectroscopy and Spectral Analysis

基　　金：教育部归国留学人员基金资助

摘　　要：综述了固相 (微 )萃取 -室温磷光技术的主要方法以及在环境分析中的应用。主要从固相萃取的基本原理、装置、操作步骤、分离模式及填料等方面评述了固相 (微 )萃取技术的特点和应用 ,评述了室温磷光技术的优点和经典室温磷光技术在操作方法和定量分析方面存在的不足 ,提出了固相 (微 )萃取和室温磷光联用技术的必然性及其优点 ,并对该方法的关键技术和存在的难题进行了分析。该技术结合了富集技术与高选择性的磷光分析方法 ,使得分析的灵敏度进一步提高 ,选择性也得到了较大的改进。目前常用的固相萃取填料主要有Whatman 1PS滤纸和填充有C18或C8盘或 (膜 ) ,目标分析物主要集中在多环芳烃、多氯联苯和多氯联苯呋喃等物质的分析 。The principle and application in the environmental analysis of Solid Phase Extraction (SPE) combined with Room Temperature Phosphorescence (RTP) analysis were reviewed. The principle, device, separation modes, operation procedures and application of SPE were commented. The merits and shortages in the operation procedure and quantitative analysis of classic RTP were also summarized. The potential application in the trace sample analysis and the advantage of coupling technique of SPE and RTP were indicated. The sensitivity and selectivity of the coupling technique could be greatly increased because of the strong enrichment ability of the SPE materials and the high selectivity of RTP. So far the technique has been successfully used in the analysis of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated dibenzofurans (PClDBFs) in the environmental samples according to their phosphorescence emission after preconcentration on the Whatman IPS filter paper and C-18 or C-8 SPE membranes.

关 键 词：固相萃取法 室温磷光法 联用技术 样品处理技术 化学分析 痕量分析 

分 类 号：O658.2[理学—分析化学] O655.11[理学—化学]