Use of a Guanidinium Ionophore in a Hydrogen Sulfite-Selective Electrode

Autor:	Leonidas G. Bachas, Angel Vidal, Pedro Molina, Mateo Alajarin, Richard S. Hutchins
Rok vydání:	1994
Předmět:	Perchlorate chemistry.chemical_compound Membrane chemistry Sulfite Hydrogen Inorganic chemistry Ionophore chemistry.chemical_element Electrochemistry Vinyl chloride Analytical Chemistry Ion selective electrode
Zdroj:	Scopus-Elsevier
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac00091a030
Popis:	A liquid membrane-based anion-selective electrode for hydrogen sulfite has been developed using a guanidininm ionophore in a poly(vinyl chloride) membrane. At pH 6.00, a logarithmic response to hydrogen sulfite in the range 5.0×10 -5 to 0.500 M is observed with a detection limit of 3.9 (±0.3)×10 -5 M (n=6). The electrode demonstrated minimal response to other anions, with perchlorate (K pot HSO3-,ClO4- =7.0×10.3) and salicylate (K pot HSO3-,salicylate =4.6×10 -3 ) being the two strongest interferents
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fe7b0c01d48f484d92b7379e68fb075 https://doi.org/10.1021/ac00091a030 Zobrazit plný text záznamu