Electrochemical Behavior of Some Cinchona Alkaloids Using Screen-Printed Electrodes
Open Access
Abstract
An effective deposition of a cinchonine layer on a platinum metal surface can be easily achieved through the cathodic reduction of a cinchonine hydrochloride methanolic solution at a controlled potential of −220 mV vs. the silver standard electrode (SSE). A coated screen-printed platinum electrode has proven to be suitable for cinchonine determination in water, urine, and serum at µg L−1 concentration levels using differential pulse voltammetry in a phosphate buffer solution (pH 7.0). The limits of detection (LOD) and quantitation (LOQ) were 0.6 µg L−1 and 1.8 µg L−1, respectively.Keywords
All Related Versions
Funding Information
- i-Foria B.V., Amsterdam, The Netherlands (2023-1-IT02-KA220-ADU-000152409)
This publication has 54 references indexed in Scilit:
- Electroanalytical Overview: Screen‐Printed Electrochemical Sensing PlatformsChemElectroChem, 2024
- Nanofabrication techniques for semiconductor chemical sensors2021
- An Optimised Method for Routine Separation and Quantification of Major Alkaloids in Cortex Cinchona by HPLC Coupled with UV and Fluorescence DetectionPhytochemical Analysis, 2017
- Mercury Films on Commercial Carbon Screen‐Printed Devices for the Analysis of Heavy Metal Ions: a Critical EvaluationElectroanalysis, 2015
- Electrochemical Deposition and Mechanical Property Enhancement of the Nickel and Nickel-Cobalt Films2013
- Cinchona Alkaloids: Quinine and Quinidine2011
- Chemically Modified Electrodes2007
- Heterogeneous Enantioselective Hydrogenation of Activated Ketones Catalyzed by Modified Pt‐Catalysts: A Systematic Structure‐Selectivity StudyAdvanced Synthesis & Catalysis, 2003
- Recent Updates of Chemically Modified Electrodes in Analytical ChemistryElectroanalysis, 2003
- Adsorption of organic substances at electrodes: Recent advancesElectrochimica Acta, 1992