Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier: Original scientific paper. J. Electrochem. Sci. Eng. [Internet]. 2022 Jan. 14 [cited 2026 Jun. 10];12(1):153-64. Available from: https://pub.iapchem.org/ojs/index.php/JESE/article/view/1173