Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC-72R Prepared via Polyol Method
Electroanalysis, vol.31, no.6, pp.1118-1124, 2019 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 31 Issue: 6
- Publication Date: 2019
- Doi Number: 10.1002/elan.201900088
- Journal Name: Electroanalysis
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1118-1124
- Keywords: Pd, Sn, electrocatalysis, benzoic acid, food safety, ELECTROCHEMICAL SENSOR, HYDROGEN-PEROXIDE, ASCORBIC-ACID, SORBIC ACIDS, FOOD, AG, CHROMATOGRAPHY, OPTIMIZATION, BEHAVIORS, ADDITIVES
- Eskisehir Osmangazi University Affiliated: No
Abstract
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimIn this study a PdSn based sensor was developed for the determination of benzoic acid (BA) in foods. A carbon (Vulcan XC-72R) supported PdSn catalyst was prepared via polyol method and its surface electronic and chemical properties were investigated by advanced surface analytical techniques such as scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD), X-ray Photoelectron Spectroscopy (XPS), temperature-programmed reduction with H2 (TPR-H2) and transmission electron microscopy (TEM). Electrochemical measurements were performed by employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques on PdSn/GCE/Vulcan XC-72R electrode. The developed sensor showed a wide linear range up to 10 mM with a 0.77 μM low limit of detection (LOD) as well as high stability. Further experiments were performed on food samples containing BA to achieve real sample measurements. For real sample measurements, PdSn/GCE/Vulcan XC-72R electrode was used for the determination of BA in different kinds of samples such as mayonnaise, ketchup and carbonated beverages.