查詢結果分析
來源資料
頁籤選單縮合
題名 | 麵粉中過氧化二苯甲醯及偶氮二碳醯胺之分析=Determination of Benzoyl Peroxide and Azodicarbonamide in Flour |
---|---|
作者 | 蘇淑珠; 朱華; 陳清美; 李樹其; 周薰修; | 書刊名 | 藥物食品分析 |
卷期 | 4:3 1996.09[民85.09] |
頁次 | 頁223-231 |
分類號 | 412.37 |
關鍵詞 | 過氧化二苯甲醯; 偶氮二碳醯胺; 麵粉; 高效液相層析法; Benzoyl peroxide; Azodicarbonamide; Flour; High performance liquid chromatography; |
語文 | 中文(Chinese) |
英文摘要 | High performance liquid chromatographic (HPLC) methods for the determination of benzoyl peroxide (BP) and azodicarbonamide (ADA) in flour were developed. To determine BP, the sample was extracted with acetonitrile, and after being sonicated and filtered, the solution was determined by HPLC. ADA was extracted with acetone, and an aliquot of the extract was evaporated (40-45℃). The residue was dissolved with 0.5% K2HPO4, then determined by HPLC. Recovery studies of BP and ADA were performed at 1, 2, 4 and 8 ppm fortifi-cation levels in flour samples. Average recoveries were 99.85-101.43% for BP and 94.35-99.11% for ADA. Coefficients of variation were less than 10%. Thirty three imported flours and twelve domestic flours were analyzed. No BP and ADA were found in any of the samples. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。