Open AccessDesign and implementation of low-cost portable potentiostat based on WeChat
Author(s) -
Xipeng Shen,
Ziqiang Li,
Lei Ma,
Xiongheng Bian,
Xingsi Cheng,
Xiongjie Lou
Publication year - 2022
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc211030018s
Subject(s) - potentiostat , computer science , detection limit , cyclic voltammetry , ascorbic acid , embedded system , electrochemistry , chemistry , chromatography , electrode , food science
The potentiostat is critical in the development of electrochemical systems; however, its cumbersome detection and high cost considerably limit its large-scale application. To provide an affordable alternative to developing countries and resource-constrained areas, this study designs an electrochemical detection system based on smartphones, which uses Bluetooth Low Energy to convert open-source potentiostat data based on PSoC-5LP. The WeChat application on the smartphone provides an interface for entering experimental parameters and visualizing the results in real time. The smartphone-based electrochemical detection system has a simple design and reduces the size (10?3?0.3 cm3) and the cost of the hardware ($ 18). The system performs the most commonly used cyclic voltammetry for electrochemical detection, with results that are comparable to those obtained using a commercial potentiostat and an error rate of 1.3 %. In the classical teaching experiment of electrochemical determination of ascorbic acid in orange juice samples, the measured value of the system is 0.367?0.012 mg/mL, compared with the standard reference value of 0.37 mg/mL, which is obviously a convincing value. Therefore, this system is a low-cost, reliable alternative to a potentiostat for research, education or product integration development.