DEVICE FOR CALIBRATING ELECTROCHEMICAL DISSOLVED OXYGEN SENSORS

被引：0

作者：

Sousa, Marcus L. ^{[1
]}

Duran, Isabela A. ^{[1
]}

Teixeira, Giovana V. ^{[1
]}

Formiga, Andre L. B. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Dept Quim Inorgan, Inst Quim, BR-13083970 Campinas, SP, Brazil

来源：

QUIMICA NOVA | 2024年 / 48卷 / 02期

关键词：

amperometric sensor; oxygen quantification; oxygen reduction reaction; microcontrollers; 3D printing;

D O I：

10.21577/0100-4042.20250031

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sensor calibration for dissolved gas is a critical and necessary step to ensure consistent sensor response over time and under different conditions. In this work, we describe a 3D printed device that facilitates the calibration of gas sensors. The device effectively maintained gas concentration in the solution for at least 2 h. Analytical curves were constructed in the pH range of 2 to 12, yielding determination coefficients surpassing 0.98. The chosen method proved suitable for the calibration of the sensors. Furthermore, using accurate and reliable reference sensors contributed to obtaining precise and trustworthy measurements.

引用

页数：5

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