頁籤選單縮合
題 名 | Determination of α-Hydroxyacids in Cosmetics=化粧品中α-Hydroxyacids之分析 |
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作 者 | 黃維生; 林澄琴; 黃明權; 溫國慶; | 書刊名 | 藥物食品分析 |
卷 期 | 10:2 2002.06[民91.06] |
頁 次 | 頁95-100 |
分類號 | 412.36 |
關鍵詞 | 高效液相層析法; High performance liquid chromatography; α-hydroxyacids; AHAs; |
語 文 | 英文(English) |
中文摘要 | 本研究利用高效液相層析法,分析化粧品中四種α-Hydroxyacids (AHAs)( Glycolic acid、dl-Malic acid、Lactic acid、Citric acid)之含量,本實驗採用C18逆相層析管柱Capcell PAK C18 UG120 S-5 μm (4.6×250 mm),移動相為2%磷酸溶液(pH 2.0),內部標準品為Maleic acid,檢到波長為210 nm,得到良好分析結果。四種AHAs於50-500 μg/mL均呈現良好線性關係,其相關係數(r)為介於0.9992~0.9995之間,四種AHAs之同日內及異日間試驗之相對標準偏差,分別為0.05~1.49%及0.72~3.24%,四種AHAs之添加回收率為介於96.3%至99.2%之間。 |
英文摘要 | A high performance liquid chromatographic method was developed for the simultaneous determination of four α-hydroxyacids (AHAs, Glycolic acid, dl-Malic acid, Lactic acid and Citric acid) in cosmetics. Samples were analyzed using a reverse-phase C18 column (Capcell PAK C18 UG120 S-5 μm) with 2% phosphoric acid (pH 2.0) as mobile phase at 210 nm. Calibration curves of four α-hydroxyacids were constructed in the range of 50-500 μg/mL and their correlation coefficients were in the range of 0.9992-0.9995. The relative standard deviations of four α-hydroxyacids for intraday and interday analyses were 0.05~1.49% and 0.72~3.24%, respectively. The average recoveries of four α-hydroxyacids ranged from 96.3% to 99.2%. |
本系統中英文摘要資訊取自各篇刊載內容。