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Voltammetric method for rapid determination of propyl gallate and its application for monitoring of biofuels quality
Authors: Tomášková Markéta | Chýlková Jaromíra | Šelešovská Renáta | Janíková Lenka
Year: 2017
Type of publication: článek v odborném periodiku
Name of source: Monatshefte fur Chemie
Page from-to: 457-461
Titles:
Language Name Abstract Keywords
cze Voltametrická metoda pro rychlé stanovení propylgalátu a její aplikace při monitorování kvality biopaliv. Byla vyvinuta voltametrická metoda stanovení propylgalátu s využitím zlaté diskové elektrody. Tato metoda byla úspěšně aplikována při analýze reálných vzorků biopaliv. Elektrochemie; Voltametrie; Oxidace; Antioxidant; Zlatá disková elektroda
eng Voltammetric method for rapid determination of propyl gallate and its application for monitoring of biofuels quality A significant problem of biofuels is their low oxidative stability, which could be improved by addition of synthetic antioxidants. Therefore, the monitoring of antioxidant content plays a crucial role in using of biofuels. In this work, the new method of voltammetric determination of synthetic antioxidant propyl gallate (propyl 3,4,5-trihydroxybenzoate) in biofuels using linear sweep voltammetry with a gold disc electrode as the working electrode was developed. In comparison with other published papers dealing with the determination of propyl gallate in food samples, voltammetric analysis of antioxidant under study in biofuels requires a completely different approach of determination due to the composition of these samples. The proposed method enables the determination of antioxidant in model samples with excellent results. Its applicability was verified by analysis of practical biofuel samples. Limit of detection 0.39 lg cm-3 and limit of quantification 1.31 lg cm-3 were obtained. The proposed method can be used to control of the quality of biofuels. Electrochemistry; Voltammetry; Oxidations; Antioxidant; Gold disc electrode

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