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題 名 | Determination of Magnesium Ascorbyl Phosphate in Cosmetic Bleaching Products Using a Disposable Screen-Printed Carbon Electrode |
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作 者 | 石瑩; 曾志明; | 書刊名 | Journal of the Chinese Chemical Society |
卷 期 | 46:6 1999.12[民88.12] |
頁 次 | 頁865-870 |
分類號 | 346.07 |
關鍵詞 | 鎂; 磷酸鹽; Magnesium ascorbyl phosphate; Screen-printed electrode; Cosmetic bleaching products; |
語 文 | 英文(English) |
英文摘要 | A preanodized screen-printed carbon electrode is used for the determination of magnesium ascorbyl phosphate in cosmetic bleaching products. The preanodization process exhibits a marked enhancement of the current response of magnesium ascorbyl phosphate at the screen-printed carbon electrode. The linear range is up to 240 μ M (correlation coefficient = 0.999) in pH 2.0 citrate buffer with a detection limit (S/N = 3) of 0.33 μM. The electrode has the advantages of low cost and easy of handling and can be either disposable or reused since the renewal gives a good reproducible surface. Quantitative analysis was performed by the standard addition method for magnesium ascorbyl phosphate content in cosmetic products. |
本系統中英文摘要資訊取自各篇刊載內容。