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標題: Determination of magnesium ascorbyl phosphate in cosmetic bleaching products using a disposable screen-printed carbon electrode
作者: Shih, Y.
Zen, J.M.
關鍵字: magnesium ascorbyl phosphate;screen-printed electrode;cosmetic;bleaching products;selective voltammetric method;uric-acid;sensor
Project: Journal of the Chinese Chemical Society
期刊/報告no:: Journal of the Chinese Chemical Society, Volume 46, Issue 6, Page(s) 865-870.
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 mu M (correlation coefficient = 0.999) in pH 2.0 citrate buffer with a detection limit (S/N = 3) of 0.33 mu M. 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.
ISSN: 0009-4536
Appears in Collections:化學系所

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