Replacement of conventional reference electrode with platinum electrode for electronic tongue based analysis of dairy products

Shripad Kulkarni, Alark; Nemade, Harshal B.; Swaminathan, Rajaram

doi:10.1016/j.rechem.2023.101185

Results in Chemistry

2023

DOI: 10.1016/j.rechem.2023.101185

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Replacement of conventional reference electrode with platinum electrode for electronic tongue based analysis of dairy products

Alark Shripad Kulkarni,

Harshal B. Nemade,

Rajaram Swaminathan

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2024

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Cited by 2 publications

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Identification of Dominant Equivalent Circuit Elements of Voltammetric Sensor System

Kumar

2024

IEEE Sensors J.

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Identification of Dominant Equivalent Circuit Elements of Voltammetric Sensor System

Kumar

2024

IEEE Sensors J.

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Corrosion Induced on Aluminum by Biodiesel Components in Non-Oxygen Environments

Vergara-Juarez,

Porcayo-Calderon,

Perez-Orozco

et al. 2024

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Biodiesel is a mixture of saturated and unsaturated Fatty Acid Methyl Esters (FAMEs) whose composition affects the corrosion behavior of metal containers during storage. This study examines the effect of the C=C bond present in selected FAMEs (Methyl Stearate, Methyl Oleate, and Methyl Linoleate) in aluminum corrosion in the absence of oxygen. First, mass loss assays were carried out at 100, 200, and 280 °C for 1000 h using pure Methyl Stearate (MS), 5% Methyl Oleate in Methyl Stearate (MS-5% MO), and 5% Methyl Linoleate in Methyl Stearate (MS-5% ML). Next, chemical changes in FAMEs were studied using FTIR, TGA, and GC/MS. SEM/EDS analysis allowed us to inspect the aluminum surfaces and their chemical characterization. We estimated higher corrosion rates for MS assays than those of unsaturated methyl ester mixtures. In a separate set of experiments, we used electrochemical techniques (potentiodynamic polarization, linear polarization resistance, and electrochemical impedance spectroscopy) to investigate aluminum corrosion induced by thermal-degraded products from FAMEs at 100, 200, and 280 °C for 300 h able to dissolve in aqueous extracts. These electrochemical experiments revealed that the products in the aqueous extracts from the unsaturated methyl ester mixture form a passive layer on the Al surface thicker than pure MS at the corresponding degradation temperatures.

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Replacement of conventional reference electrode with platinum electrode for electronic tongue based analysis of dairy products

Cited by 2 publications

References 10 publications

Identification of Dominant Equivalent Circuit Elements of Voltammetric Sensor System

Identification of Dominant Equivalent Circuit Elements of Voltammetric Sensor System

Corrosion Induced on Aluminum by Biodiesel Components in Non-Oxygen Environments

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