Screen-Printed Gold Electrode for Nickel(II) Detection in Deep Eutectic Solvent Media

Overview

Godja et al. (2025) develop a screen-printed gold electrode-based electrochemical method for nickel(II) (Ni2+) detection in choline chloride-ethylene glycol (ChCl-EG) deep eutectic solvent medium. The study focuses on the electrochemical behavior of Ni2+ in this novel solvent medium rather than directly on food or water sample analysis.

Key numbers

LOD: 1.6 µM in ChCl-EG deep eutectic solvent, equivalent to approximately 94 µg/L (94 ppb) under the measurement conditions. This LOD is in the ChCl-EG medium, not in food or water matrices, limiting direct comparability to food analytical needs.

Methods (brief)

Screen-printed gold electrode. Differential pulse voltammetry or stripping voltammetry. ChCl-EG deep eutectic solvent electrolyte — not a food or environmental water matrix. The paper explores fundamental electrochemistry of Ni in non-aqueous solvents rather than practical food analysis.

Implications

Testing: LOD in deep eutectic solvent medium is not directly translatable to food matrix applications. Nickel (Ni) is an HMT&C analyte; analytical method development for Ni is relevant to the testing wiki pages, but this paper’s contribution is to fundamental electrochemistry rather than validated food method development.

Wiki pages updated on ingest

• nickel-methods

Update history

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