使用丝网印刷原位铋膜电极通过吸附剥离伏安法测定铬(VI)

IF 2.7 3区化学 Q2 CHEMISTRY, ANALYTICAL

Electroanalysis Pub Date : 2024-09-13 DOI:10.1002/elan.202400218

Juan José Triviño, Miquel Esteban, José Díaz-Cruz, Nuria Serrano, Alejandro Alvarez-Lueje, VERONICA ARANCIBIA

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引用次数: 0

摘要

本研究采用原位铋膜丝网印刷碳电极（原位 Bi-SPCE ），以焦酚红（PGR）为络合剂，通过吸附剥离伏安法（AdSV）测定六价铬，该方法快速、灵敏。该方法的基础是 PGR 被六价铬氧化后与三价铬络合。为了获得灵敏度和选择性高的方法，对 pH 值、PGR 的配体浓度（C PGR;/sub>）、蓄积电位和蓄积时间（E acc, t acc）等参数的影响进行了优化。

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Determination of Chromium(VI) with Screen‐Printed ex‐situ Bismuth film electrodes by adsorptive stripping voltammetry

This work presents a fast and sensitive method, with an ex−situ bismuth film screen‐printed carbon electrode (ex−situ Bi−SPCE), for the determination of Cr(VI) through adsorptive stripping voltammetry (AdSV) using Pyrogallol Red (PGR) as complexing agent. The method is based on the oxidation of PGR by Cr(VI) and posterior complexation with Cr(III). To obtain a sensitive and selective method, the effects of various parameters such as pH, ligand concentration of PGR (C PGR), accumulation potential, and accumulation time (E acc, t acc) were optimized.

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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.