A Flow System for Urea and Glucose Measurement with a Self Polishing Electronic Tongue
(English)Manuscript (preprint) (Other academic)
A self polishing voltammetric electronic tongue was evaluated for simultaneousl prediction of urea and glucose concentrations in phosphate buffer in a flow system. The voltammetric electronic tongue consisted of three working electrodes (gold, platinum and rhodium) and a counter electrode, also acting as reference electrode. The flowsystem contained five valves, controlled by a computer and a peristaltic pump. Two batches of sample standards were used; one for calibration and the other for validation. The system could predict concentrations of urea and glucose in the interval 0 – 20 mM in the validation batch. No significant difference between the two batches was seen. The self polishing approach makes the system in principle maintenance free. With a large potential use in hemodialysis.
Voltammetry, electronic tongue, urea, glucose, multivariate data analysis
IdentifiersURN: urn:nbn:se:liu:diva-65409OAI: oai:DiVA.org:liu-65409DiVA: diva2:395472