Adsorptive Stripping Analysis of Trace Nickel at Iridium-Based Ultramicroelectrode Arrays

Autor:	Samuel P. Kounaves, Joseph Wang, William K. Adeniyi, J. Wang
Rok vydání:	2000
Předmět:	Detection limit Inorganic chemistry Analytical chemistry chemistry.chemical_element Ultramicroelectrode Multielectrode array Microanalysis Analytical Chemistry Nickel Microelectrode Adsorption chemistry Electrochemistry Iridium
Zdroj:	Electroanalysis. 12:44-47
ISSN:	1521-4109 1040-0397
DOI:	10.1002/(sici)1521-4109(20000101)12:1<44::aid-elan44>3.0.co;2-4
Popis:	Lithographically fabricated iridium-based mercury microelectrode arrays are shown to be very suitable for adsorptive stripping measurements of trace nickel in the presence of the dimethylgloxime complexing agent. Variables affecting the response have been assessed and optimized. The sensor optimization has resulted in a favorable and highly stable response, with good linearity and precision (RSDa 1.7 %), and a low detection limit (0.5mg=L with 30 s adsorption). Such adsorptive stripping performance makes the iridium-based microelectrode array very attractive for on-site measurements of trace metals that cannot be plated electrolytically.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c32c2cf8fbedf05ebee8addbaba34a4f https://doi.org/10.1002/(sici)1521-4109(20000101)12:1<44::aid-elan44>3.0.co Zobrazit plný text záznamu Plný text