Related Experiment Video
Updated: Sep 27, 2026

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
Published on: May 22, 2018
Differential pulse anodic voltammetric determination of lithium ions in pharmaceutical formulations using a carbon
Marcos F S Teixeira1, Fernando C Moraes, Eder T G Cavalheiro
1Grupo de Quimica Analítica, Departamento de Química, Centro de Ciências Exatas e de Tecnologia, Universidade Federal de São Carlos, Caixa Postal 676, Via Washington Luiz, CEP 13 560-970 São Carlos, SP, Brazil. funcao@dq.ufscar.br
Abstract:
The use of the differential pulse voltammetry for the determination of lithium ions in pharmaceutical samples using a carbon paste electrode modified with spinel-type manganese oxide has been examined. The best voltammetric response was reached for a modified electrode in borate buffer solution of pH 9.0 and submitted to a scan rate of 5 mV s(-1) and a pulse amplitude of 50 mV. This electroanalytical procedure was able to determine lithium ions in the concentration range of 8.0 x 10(-5)-1.0 x 10(-2) mol l(-1) even in the presence of several alkali metals (1.0 x 10(-3) mol l(-1)) with a detection limit of 7.1 x 10(-7) mol l(-1). Rapidity, precise and good selectivity were also found for the determination of lithium ions in pharmaceutical formulations.
Related Concept Videos
Voltammetric Techniques: Pulse Voltammetry
Voltammetric Techniques: Linear-Scan (E vs Time)
Voltammetry: Overview
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
Voltammetric Techniques: Cyclic Voltammetry
Electrodeposition
Electrodeposition can...
Electrogravimetric Analysis: Overview
To test the completeness of the...

