Synthesis and Voltammetric Studies Concerning a Phenyl Trisilanol Polyhedral Oligosilsesquioxane Modified with Phosphate and Methylene Blue for Pyridoxine Detection

IF 2.7 3区化学 Q2 CHEMISTRY, ANALYTICAL

Electroanalysis Pub Date : 2025-03-03 DOI:10.1002/elan.12036

Murilo Santos Peixoto, Devaney Ribeiro do Carmo

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Abstract

This study describes the synthesis of a phenyl trisilanol polyhedral oligosilsesquioxane (POSS) employing calcium and its subsequent modification by phosphate and methylene blue for electrochemical applications. Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy, were employed to characterize the developed material. The obtained POSS was characterized by cyclic coltammetry employing a graphite paste electrode, exhibiting well-defined redox pairs. The modified graphite paste electrode demonstrated an adequate electrocatalytic response for pyridoxine. Regarding catalytic pyridoxine electro-oxidation, the modified electrode exhibited a linear response ranging from 7.0 × 10⁻⁶ to 1.0 × 10⁻³ mol L⁻¹, with a limit of detection of 3.24 × 10⁻⁶ mol L⁻¹. The studied material, therefore, comprises a potential candidate for the development of electrochemical sensors for pyridoxine detection.

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来源期刊

Electroanalysis 化学-电化学

CiteScore

6.00

自引率

3.30%

发文量

222

审稿时长

2.4 months

期刊介绍： Electroanalysis is an international, peer-reviewed journal covering all branches of electroanalytical chemistry, including both fundamental and application papers as well as reviews dealing with new electrochemical sensors and biosensors, nanobioelectronics devices, analytical voltammetry, potentiometry, new electrochemical detection schemes based on novel nanomaterials, fuel cells and biofuel cells, and important practical applications. Serving as a vital communication link between the research labs and the field, Electroanalysis helps you to quickly adapt the latest innovations into practical clinical, environmental, food analysis, industrial and energy-related applications. Electroanalysis provides the most comprehensive coverage of the field and is the number one source for information on electroanalytical chemistry, electrochemical sensors and biosensors and fuel/biofuel cells.