臺灣博碩士論文加值系統

本論文以建立揮發性有機氣體自動化分析系統為目的，將氣體檢測方法所需的人力、時間控制到最精簡的程度：不銹鋼採樣罐清洗系統可同時進行10組採樣罐清洗、自動化氣體樣品採集器可進行12組定點逐時樣品採集工作；16組不銹鋼罐自動進樣系統、樣品前濃縮裝置、進樣、化合物的分離偵檢乃至於最後的自動定性、定量工作，達成完整的自動化分析功能。整套分析系統以美國環保署公告的TO-14A與TO-15為架構，確認數據產生的過程能夠達到品保及品管的要求，針對56種臭氧前驅物方法偵測極限低於0.5ppbv；精確度10%；準確度13%。
為求掌握環境空氣品質狀況的時效性，將分析系統拓展到揮發性有機化合物自動化現場即時監測系統的建立。利用吸附劑進行常溫下(300C)樣品前濃縮，程式升溫以400C作為起始溫度，避免現場即時分析系統需補充冷凝劑的不便；樣品進樣及樣品前濃縮(20min)、分離、偵檢、自動定性定量完整分析流程時間共1小時，提高分析數據在時間上的解析度。環境實測部份以新竹科學園區為對象，針對園區常見的12種氣態污染物質進行連續五天的空氣監測，五天內系統穩定性為正負5%以內。

The purpose of this thesis is to establish an automatic volatile organic compounds analysis system, which saves man power and reduces analysis time. The analysis system includes 10-canister cleaning system, 12-canister auto-sampler, 16-canister auto-injection system and sample preconcentration trap. Qualitative and quantitative data acquisition can be conducted by automation. The analytic method is based on US EPA TO-14A and TO-15. In addition, QA/QC is accomplished with TO guidiance. Our results show that MDL0.5ppbv, precision10% and accuracy13% for 56 ozone precursor.
Besides, this work also extended the system to real time in-situ VOCs monitoring. An adsorbent was used as a sample preconcentration trap at 300C with initial oven temperature of 400C to limit usage of liquid nitrogen. Each hourly run includes procedures such as sample injection(20min), preconcentration, separation, detection, automatic qualititive and quantitative data aquisition. During 5 days measurment, the systematic stablity was within 5%.

第一章、 序論8
第二章、文獻回顧 11
2.1採樣方法 11
2.2樣品前處理13
2.3樣品的分離 14
2.4樣品的偵檢14
2.5定性15
2.6定量15
第三章、VOCs自動化分析系統建立 17
3.1 儀器設備19
3.2 實驗分析流程 23
3.3分析系統評估27
3.4環境實測30
第四章、現場自動量測與傳輸系統建立62
4.1研究背景62
4.2儀器改裝評估63
4.3分析流程與系統說明64
4.4分析系統評估68
4.5環境實測 70
五、結論90
參考文獻92
附錄 95

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