在京都議定書和哥本哈根氣候高峰會所倡導的趨勢下，世界之工業國家需積極進行減碳排放的政策，以減緩全球暖化不斷加劇的現狀，然而除了進行排放減量的施政之外，仍須藉由準確的分析技術來評估溫室氣體的減量成效，是故，本研究目標旨在研發成本合理的自動化即時分析方法，可因應於長期操作觀測站之使用，以配合現今我國環境議題的需求。 CO2和CH4為重要的溫室氣體，本研究中利用矽分子篩材料具有較大孔徑的特性，作為快速分離大氣中CO2的填充靜相，以節省系統耗電之需求作為研發方向，並搭配已經建構完成的自動進樣系統與鎳觸媒管進行開發，探討新穎材料在化學層析應用上的可能性。此外，鹵碳化合物(halocarbons)亦是重要溫室效應氣體，包含氟氯碳化物(chlorofluorocarbons, CFCs)、氟氯碳取代物(HCFCs and HFCs)、全氟化合物(perfluorocompounds, PFCs)等，應用層面包括冷凝設備、發泡劑、溶劑，PFCs在我國被半導體與光電產業大量使用，本研究嘗試開發一套以氣相層析儀作為核心量測技術，目標監測大氣中之鹵碳化合物，實驗中將利用Heart-Cut技術作為發展的方向，測試適合的分析條件並進行細部改良之後，預期可線上或採樣分析鹵碳化合物空氣樣品，建立一套準確與再現並重之溫室氣體即時檢測方法。 Taiwan, as a responsible member of international community, is facing the mounting pressure from acting on global warming issues. Action plans have been under-taken at all levels in the governmental and private sectors. Emission assessments of green house gases (GHGs) will play a central role in these actions which ultimately lead to controlling emissions of GHCs. Analytical techniques capable of assessing their ambient levels with adequate accuracy and precision are a necessity for the assessments. As a result, our research for the next 3 years mainly focuses on the development of analytical and monitoring techniques for GHGs at ambient levels; these GHGs include CO2, CH4, chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydroflurorcarbons (HFCs), and perfluorocarbons (PFCs). Automated gas chromatography and mass spectrometry will serve as the technical bases for measuring target GHGs. New materials will be incorporated into gas chromatographic techniques. We employed mesoporous silicates both as separation and enrichment materials. MCM-41 and MCM-48 silicates have shown promising results as on-line enrichment sorbents for automated analysis of trace level volatile organic compounds (VOCs). When used as separation medium, they showed excellent characteristics for separating CO2 from other gases, with additional advantages of resolution and speed. These novel techniques will be used on our newly developed GC systems and inter-compared with existing commercial instruments. 研究期間：10008 ~ 10107
