塑膠中溴阻燃劑多溴聯苯醚GC-MS/MS之研究

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Title:	塑膠中溴阻燃劑多溴聯苯醚GC-MS/MS之研究
Other Titles:	Polybrominated diphenyl ethers (PBDEs) of brominated flame retardants (BFRs) in plastics - GC/MS/MS
Authors:	李智龍;Li, Chih-lung
Contributors:	淡江大學水資源及環境工程學系碩士班許道平;Hsu, Tau-being
Keywords:	多溴聯苯醚;微波萃取;氣相層析串聯質譜儀;PBDEs;MAE;GC-MS/MS
Date:	2008
Issue Date:	2010-01-11 07:25:17 (UTC+8)
Abstract:	本研究係以建立快速檢測塑膠中多溴聯苯醚之方法，由於在塑膠製程中添加許多化學物質如塑化劑、阻燃劑等物質，在分析時會造成干擾。為了避免這些干擾物在進樣分析前先以酸性矽膠淨化萃取液，並且以GC-MS/MS檢測以去除在分析時可能干擾的物質。並比較微波萃取法與索氏萃取法之優劣。本研究之實驗順序為以五溴聯苯醚同屬物BDE-99與BDE-100使用GC-ECD與GC-MS/MS進行定性與定量分析實驗。探討前處理－微波萃取、索氏萃取、酸性矽膠淨化及吹氮濃縮、等流程之回收率。以熱塑性彈體（Thermoplastic Elastomer, TPE）基質添加法進行田口氏實驗設計，以尋找微波萃取條件最佳化條件之參數。實驗結果顯示萃取最佳化條件為：(1)萃取時間：30min；(2)萃取溫度130 ℃；(3)萃取溶劑比例：甲苯/異辛烷/甲醇(10/1/5,v/v/v)；(4)樣品重量為0.25 g。以微波萃取最佳化條件參數進行真實樣品商用泡綿基質及基質添加法之實驗，進行回收率測試，本實驗結果顯示基質添加法試驗回收率最低可達到80 ％以上。 Polybrominated diphenylethers (PBDEs) are widely used as flame retardants in a variety of commercial products,such as polyurethane foam, backcasings of TVs, printed circuit boards,and electronic component encapsulates. This research was focused on establishing a rapid detecting method for PBDEs in plastics. We focused on the comparison of microwave assisted extraction(MAE) and Soxhlet extraction(SE) methods. Due to several chemicals that can interfere the analysis such as plasticizing agent, brominated flame retardants(BFRs) were added during the production of plastics, we utilized acidified silica gel clean up to remove the interference before analyzing the extract by GC-MS/MS. The experiment were focused on qualification and quantification of BDE-99and BED-100 in plastic samples by GC-ECD and GC-MS/MS. The efficiency of sample pre-treatment methods such as microwave assisted extraction, Soxhlet extraction, acidified silica gel clean up, and sample concentrator are also discussed. To optimize the parameters of microwave assisted extraction(MAE), we use Thermoplastic Elastomer(TPE) spiked sample method to perform Taguchi Method. The optimal conditions conclude from our experiment are as following：(1) extraction time：30 min；(2) extraction temperature：130 oC；(3) extraction solvents component：toluene/octane/methanol (10/1/5,v/v/v)；(4) sample weight：0.25 g. In conclusion, the recovery efficiency of PBDEs were up to 80 % by performing microwave assisted extraction using the optimal condition mentioned above. Experiment results show that the microwave assisted extraction that uses less solvents can create the same extraction efficiency as Soxhlet extraction.
Appears in Collections:	[Graduate Institute & Department of Water Resources and Environmental Engineering] Thesis

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