Potentiometric determination of dialysate urea nitrogen

Autor:	R, Koncki, A, Radomska, S, Głab
Rok vydání:	1999
Předmět:	Flow injection analysis chemistry.chemical_compound Chromatography chemistry Potentiometric titration Electroanalytical method Urea Ammonium Quantitative analysis (chemistry) Biosensor Analytical Chemistry Ion selective electrode
Zdroj:	Talanta. 52(1)
ISSN:	1873-3573
Popis:	An enzymatically modified ammonium ion-selective electrode has been applied for the determination of urea in spent dialysate. The biosensor has been used in a simple flow-injection analysis (FIA) system. The system enables one to perform over 25 dialysate urea nitrogen (DUN) determinations per hour. The interferences from other components of posthemodialysis fluid were eliminated by simultaneous measurements with non-modified enzymatically ion-selective electrode. It is possible to use both the sensors in a simplified differential potentiometric system. The results of DUN determination using the biosensor/FIA system and a conventional method of urea determination were comparable. The presented analytical system can potentially find wider biomedical application in the monitoring of hemodialysis progress.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f6438c44ff7a9f48f3b0c2d19edb7aa https://pubmed.ncbi.nlm.nih.gov/18967957 Zobrazit plný text záznamu Full Text from ScienceDirect