Determination of parabens in cosmetic samples by capillary zone electrophoresisстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:The separation conditions of parabens by capillary zone electrophoresis (CZE) have been optimized. The effects of sample injection time, potential, concentration and pH value of borate buffer on separation have been investigated. The duration of analysis of four-component mixture, including methyl-, propyl-, isopropyl- and butylparaben doesn’t exceed 8 minutes. It takes 10 minutes to separate seven-component mixture containing along with parabens such preservatives as benzoic, salicylic and p-hydroxybenzoic acid. Parabens have been determined in cosmetic samples.