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題 名 | Determination of Glucosamine Content in Nutraceuticals by Capillary Electrophoresis Using In-Capillary OPA Labeling Techniques=配合管內OPA標識技術以毛細管電泳法分析保健食品中葡萄糖胺含量 |
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作 者 | 陳忠智; 李允中; 鄭宗記; 蕭賢義; 陳力騏; | 書刊名 | 藥物食品分析 |
卷 期 | 14:2 2006.06[民95.06] |
頁 次 | 頁203-206+222 |
分類號 | 412.37 |
關鍵詞 | 毛細管電泳; 管內標識法; 葡萄糖胺; OPA; Capillary electrophoresis; Glucosamine; Nutraceutical; In-capillary labeling; O-phthalaldehyde; |
語 文 | 英文(English) |
中文摘要 | 本研究使用毛細管電泳 (CE) 技術分析保健食品中葡萄糖胺 (Glucosamine) 的含量。葡萄糖胺先與o-aminophthalate (OPA) 試劑 (將4.5 mM OPA及4.5 mM 2-mercaptoethanol溶於pH9.3、20 mM 硼酸緩衝液) 反應形成螢光圈,於3分鐘內分離後以A340定量。此標識反應可採用循序注射OPA/樣品溶液/OPA溶液之方式直接於毛細管中進行,以簡化樣品前處理並提高再現性。比毛細管中線上標識CE法的線性範因為0.1-30mM,對於以醣質作賦型劑的保健食品,可在樣品不經過前處理的情況下直接定量葡萄糖胺。 |
英文摘要 | Capillary electrophoresis (CE) procedure was developed for determining glucosamine content in nutraceuticals. Glucosamine was labeled with o-phthalaldehyde (OPA) by mixing with the OPA reagent (4.5 mM OPA, 4.5 mM 2-mercaptoethanol dissolved in 20 mM borate buffer, pH 9.3). The fluorescent OPA-glucosamine adduct was separated and detected at A340 within 3 min. The pre-capillary labeling reaction can be performed by sequentially injecting OPA/sample/OPA segments into the separation capillary; the in-capillary labeling technique simplified the sample pretreatment and improved its reproducibility. The linear dynamic range of the in-capillary labeling CE method was 0.1~30 mM. No sample pretreatment procedure was required for tablets containing mainly starch or other sugar as the vehicles. |
本系統中英文摘要資訊取自各篇刊載內容。