| Literature DB >> 10983289 |
Abstract
The target of this research was to evaluate the photostability at various pH values of 1.20 x 10(-4) M aqueous solution of arbutin (lambda max = 267 nm; epsilon = 7500 M-1.cm-1). This photodegradation appeared to follow first-order kinetics whatever the pH. The degradation rate constant was calculated to be 5.5 x 10(-4), 7.0 x 10(-4) and 24.1 x 10(-4) min-1, respectively at pH 5, 7 and 9.Entities:
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Year: 2000 PMID： 10983289 DOI： 10.1016/s0014-827x(00)00049-5
Source DB: PubMed Journal: Farmaco ISSN： 0014-827X