- 作者: 林啟東 ; 戴至平 ; 桂椿雄
- 作者服務機構: 成功大學化學系
- 中文摘要: Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorinated pesticides (OCPs) on different absorbents were extracted and analyzed by a directly coupled supercritical fluid extraction and supercritical fluid chromatography system(on-line SFE/SFC). The influence of various absorbents as sample matrixes on extraction efficiencies was evaluated. In general, the extraction efficiencies were decreased if a matrix had a larger surface area and a smaller pore size. The recoveries of PAHs and PCBs were decreased in inverse proportion to their molar mass. Recoveries of OCPs containing epoxy functional groups were greater than for OCPs lacking this functional group. In conclusion, on-line SFE/SFC is a rapid (1-2h) and high recovery (70%-100%) analytical technique.
- 英文摘要: --
- 中文關鍵字: On-Line Supercritical Fluid Extraction; Supercritical Fluid Chromatography; Polycyclic Aromatic Hydrocarbons (Pahs); Polychlorinated Biphenyls (Pcbs); Or
- 英文關鍵字: 連線超臨界流體萃取;超臨界流體層析;多環芳香族碳氫化合物;多氯聯苯;有機氯殺蟲劑;基質(基體);萃取