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標題: | Voltammetric determination of kojic acid in cosmetic bleaching products using a disposable screen-printed carbon electrode | 作者: | Shih, Y. 曾志明 Zen, J.M. |
關鍵字: | kojic acid;screen-printed electrode;cosmetic bleaching products;uric-acid;sensor | Project: | Electroanalysis | 期刊/報告no:: | Electroanalysis, Volume 11, Issue 4, Page(s) 229-233. | 摘要: | A preanodized screen-printed carbon electrode is used for the determination of kojic acid in cosmetic bleaching products by square-wave voltammetry. The preanodization process leads to a marked enhancement of the current response of kojic acid at the screen-printed carbon electrode. The linear range is up to 260 mu M in pH 10 Britton-Robinson buffer with a detection limit (S/N=3) of 0.17 mu M. The electrode has the advantages of low cost, of being easy to handle, and it can be either disposable or reused since the renewal gives a reproducible surface. Quantitative analysis for the kojic acid content in cosmetic products was performed by the standard addition method. |
URI: | http://hdl.handle.net/11455/34820 | ISSN: | 1040-0397 | DOI: | 3.3.co;2-7>10.1002/(sici)1521-4109(199904)11:4<229::aid-elan229>3.3.co;2-7 |
Appears in Collections: | 化學系所 |
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