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Characterization and Validation of a Platinum Paper‐based Potentiometric Sensor for Glucose Detection in Saliva
Author(s) -
BorràsBrull Marta,
Blondeau Pascal,
Riu Jordi
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060221
Subject(s) - potentiometric titration , saliva , repeatability , potentiometric sensor , chromatography , chemistry , dilution , platinum , electrode , biochemistry , physics , catalysis , thermodynamics
A paper‐based potentiometric sensor was constructed and characterized for the detection of glucose in saliva. Dilution of the samples was optimized to afford the optimum experimental conditions of measurements. The performance allows for detecting abnormal high glucose concentrations observed in diabetes patients. Repeatability data were presented and the performance of the sensor compared to literature examples showing suitable characteristics at a much lower cost. The validation in real saliva samples was performed against a commercial colorimetric kit showing that glucose could be effectively determined in the 4–10 mM range based on the comparison with a reference method.