Development of an amperometric detector for the determination of phenolic compounds

Autor:	Dan-ke Xu, Hong-Yuan Chen, Aimin Yu
Rok vydání:	1997
Předmět:	Detection limit Catechol chemistry.chemical_compound Chromatography Capillary electrophoresis chemistry Electrode Chemical modification Phenols Biochemistry Amperometry Chemically modified electrode
Zdroj:	Fresenius' Journal of Analytical Chemistry. 359:542-545
ISSN:	1432-1130 0937-0633
DOI:	10.1007/s002160050629
Popis:	Polyhistidine chemically modified electrode is shown to greatly improve the voltammetric waves and increase the current response of phenolic compounds (such as dopamine (DA), epinephrine (E) and catechol (CC)) for their cation-selective quality. When used as amperometric detector, the detection limits are 6×10-9 mol/L for DA, 8×10-9 mol/L for E and 2×10-8 mol/L for CC. The modified electrode has also been used as electrochemical detector for capillary electrophoresis (CE) and the phenolic compounds were successfully separated and detected with high resolution. The electrode has a good stability; 80% of the original response was obtained after being used in CE for one month.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07788167f4171f0a4f0e44fe66b740d7 https://doi.org/10.1007/s002160050629 Zobrazit plný text záznamu Full text from SpringerLink