查詢結果分析
來源資料
相關文獻
- A Rapid and Simple Gas Chromatographic Method for Direct Determination of Safrole in Soft Drinks
- 市售奶油、乾酪、人造奶油及沙拉醬中己二烯酸、脫水醋酸及苯甲酸之氣相層析快速定量法
- A Simple Method for the Simultaneous Determination of Various Preservatives in Liquid Foods
- A Rapid Method for Direct Determination of Levulinic Acid in Soy Sauce
- 液體發酵製品中乳酸之快速氣相層析定量分析法
- A Rapid and Simple Gas Chromatographic Method for Direct Determination of Nicotinamide in Commercial Vitamins and Tonic Drinks
- 油脂中游離態脂肪酸及總脂肪酸之簡易定量分析
- 飲料中咖啡因之簡易快速分析
- A Rapid Gas Chromatographic Method for Direct Determination of Free Sterols in Animal and Vegetable Fats and Oils
- GAs Chromatography-Mass Spectrometry Analysis of 11-Nor-9-Carboxy-△勄-Tetrahydrocannabinol in Urine
頁籤選單縮合
題 名 | A Rapid and Simple Gas Chromatographic Method for Direct Determination of Safrole in Soft Drinks=市售清涼飲料中黃樟素之簡易快速氣相層析定量分析法 |
---|---|
作 者 | 鍾玉明; 林秀蓉; | 書刊名 | 藥物食品分析 |
卷 期 | 9:1 2001.03[民90.03] |
頁 次 | 頁27-32 |
分類號 | 341.96 |
關鍵詞 | 清涼飲料; 黃樟素; 直接注入法; 氣相層析; 定量分析; Soft drink; Safrole; Isosafrole; Direct injection; Gas chromatography; Quantitative analyses; |
語 文 | 英文(English) |
中文摘要 | 本研究建立了市售清涼飲料中黃樟素之簡便快速氣相層析方法。選擇水溶性之1,4-dihydroxybenzene(DHB)為內標準加入清涼飲料中,樣品不需經任何前處理,直接注入氣相層析儀中,採用直接注入(directinjection)之方式,配合中間極性之CP-SIL 8CB管柱(30 m × 0.53 mm, 1.5 μm)分析定量清涼飲料之黃樟素。最低檢出量為0.25 μg/mL左右。添加safrole 及isosafrole 5.0 及10.0 μg/mL於1 mL檢體中,直接注入GC分析,其回收率為98~108%,變異係數cv%在8.7% 以下。以本方法分析市售不同廠牌之清涼飲料中黃樟素含量。結果顯示25 件清涼飲料中有20 件檢測出含safroleh 及/或isosafrole 。且safrole 之含量均超過食品添加物使用範圍及用量標準之規定(1 μg/mL)3-5 倍。 |
英文摘要 | A simple and rapid method was developed to determine the safrole and isosafrole in soft drink using a megapore semi-polar column (CP-SIL 8CB, 30 m × 0.53 mm, 1.5 μm) with direct injection gas chromatography. Direct quantitative analysis of safrole and isosafrole in soft drinks was carried out without any sample pretreatment procedure. The water soluble compound 1,4-dihydroxybenzene (DHB) was used as the internal standard. The detection limit for safrole and isosafrole was 0.25 μg/mL. A recovery study was performed using one of the soft drinks by spiking 1 mL with safrole and isosafrole at 5.0 and 10.0 μg, respectively. The recovery was found in the range of 98-108% with coefficients of variation being less than 8.7%. Twenty-five commercial soft drinks were analyzed by the current method, and results indicated that 20 out of 25 soft drink samples contained safrole andlor isosafrole, and the amount of safrole was 3-5 fold over the regulated amount, 1 μg/mL. |
本系統中英文摘要資訊取自各篇刊載內容。