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頁籤選單縮合
題 名 | Determination of Simazine Residue in Sugarcane by Application of Matrix Solid Phase Dispersion (MSPD) Extraction Technique=應用基質固相分佈萃取技術於甘蔗中草滅淨殘留量之分析 |
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作 者 | 曾素香; 林育如; 張碧秋; 周薰修; 張鴻民; | 書刊名 | 藥物食品分析 |
卷 期 | 12:1 2004.03[民93.03] |
頁 次 | 頁74-78+100 |
分類號 | 412.37 |
關鍵詞 | 基質固相分佈萃取; 甘蔗; 草滅淨; 農藥殘留; 高效液相層析法; Pesticide residue; Sugarcane; Matrix solid phase dispersion; Simazine; High performance liquid chromatography; |
語 文 | 英文(English) |
中文摘要 | 本研究建立了應用基質固相分佈 (matrix solid phase dispersion,MSPD) 萃取技術及矽酸鎂固相萃取匣淨化,分析甘蔗檢體中草滅淨 (simazine) 殘留量之簡便的分析方法。此分析法於單一沖提步驟中,可同時進行萃取及淨化,大幅降低有機溶媒之使用量。取均質後之甘蔗檢體2g,與2gEnvu Elut吸附劑研磨混合至均態分佈,將此基質混合物移至矽酸鎂固相萃取匣,以二氣甲烷25mL分次沖提,沖提液經減壓濃縮至乾後以乙腈溶解,最後以高效液相層析儀分析,偵測波長為230nm。添加草滅淨0.1-0.5ppm於甘蔗中,三重複之平均回收率為86.9-94.7%,變異係數小於10%。本方法之最低檢出限量為0.02ppm。 |
英文摘要 | A rapid method for the determination of simazine residue in sugarcane by matrix solid phase dispersion (MSPD) extraction and florisil cleanup was developed. This method performed extraction and cleanup in a single eluting step and significantly reduced organic solvent consumption. Two grams of homogenized sample was blended with 2 g of EnvirElut sorbent until a homogeneous mixture was observed. The mixture was transferred into a florisil cartridge, and eluted with 25 mL of dichloromethane. The eluate was evaporated to dryness, and the residue was dissolved with acetonitrile and then determined by HPLC-UV at 230 nm. Recoveries of simazine spiked in sugarcane (0.1~0.5 ppm) were determined to be 86.9~94.7%, while coefficient of variation was determined to be less than 10%. The detection limit was 0.02 ppm. |
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