頁籤選單縮合
題名 | 微波輔助萃取結合氣相層析串聯質譜儀分析茶葉中有機磷劑及合成除蟲菊類農藥=Determination of Organophosphate and Pyrethroids Residues in Tea Samples by Microwave-assisted Extraction with GC/MS/MS |
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作者 | 楊小瑩; 紀依汝; 張維倩; 黃正宗; | 書刊名 | 臺灣茶業研究彙報 |
卷期 | 33 2014.11[民103.11] |
頁次 | 頁151-163 |
分類號 | 343.8 |
關鍵詞 | 微波輔助萃取; 茶; 農藥殘留; 氣相層析串聯質譜儀; Microwave-assisted extraction; Tea; Pesticide residues; Gas chromatograph tandem mass spectrometer; |
語文 | 中文(Chinese) |
中文摘要 | 本研究利用微波輔助萃取前處理方法結合氣相層析串聯質譜儀進行茶葉中有機 磷劑及合成除蟲菊類農藥殘留分析。比較不同微波處理條件,微波條件設定為 5 分 鐘上升至 60℃平衡、持溫 5 分鐘,得到的藥劑回收率較好。在 47 項有機磷劑類 中除了美福松、二硫松及滅賜松回收率為 21.1%、21.3% 及 18.0% 外,藥劑回收率 介於 37.7-117.2%,在 15 項合成除蟲菊類農藥中藥劑回收率介於 83.6-107.0%。除 滅克松為 26.9% 外,兩類農藥回收率相對標準偏差介於 1.0-16.7%,方法偵測極限 為 10-100 ng/g。和目前較常被使用的液液萃取前處理方法比較,本研究建立之方法 可減少有機溶劑的使用及縮短前處理時間。 |
英文摘要 | In this study, we developed microwave-assisted extraction (MAE) method for the determination of organophosphate and pyrethroids residues in tea samples with gas chromatograph tandem mass spectrometer (GC/MS/MS). The results showed that the recovery was better under the microwave program: increase to 60℃ in 5 min and hold 5 min. Recovery yields of spiked tea were from 37.7 to 117.2% for 44 of the organophosphate and 21.1% for Mephosfolan, 21.3% for Disulfoton and 18.0% for Demeton-S-methyl. For 15 of the pyrethroids, the recovery were from 83.6 to 107.0%. Except Methacrifos (26.9%), the relative standard deviations were from 1.0 to 16.7%. Method detection limits were in the range from 10 to 100 ng/g. Compared to liquid-liquid extraction method, the advantages of MAE method were low solvent consumption and less extraction time. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。