Voltammetric sensor for uranium based on the propyl gallate- modified carbon paste electrode

Autor:	David Larson, Jianmin Lu, Kris Olsen, Joseph Wang
Rok vydání:	1995
Předmět:	Working electrode Materials science Analytical chemistry chemistry.chemical_element Uranium Reference electrode Analytical Chemistry Carbon paste electrode law.invention chemistry.chemical_compound chemistry law Electrode Shielded cable Electrochemistry Selectivity Propyl gallate
Zdroj:	Electroanalysis. 7:247-250
ISSN:	1521-4109 1040-0397
DOI:	10.1002/elan.1140070308
Popis:	A carbon paste electrode modified with the ligand propyl gallate is introduced for preconcentration/voltammetric measurements of low levels of uranium. The resulting preconcentrating electrode offers many attractive properties for on-site sensing of uranium, including high sensitivity and selectivity, self-cleaning capability, and use of nondeaerated quiescent solutions. The response is characterized with respect to the paste composition, preconcentration period, solution and differential pulse conditions, and other variables. The sensor displays high stability, and can be used repeatedly without regeneration. When coupled to a 100-ft (30.5-m) long shielded cable, the electrode offers a remote sensing capability, as illustrated in the determination of uranium in groundwater.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::43e7a95081b9bb238240c8c3e403f7bf https://doi.org/10.1002/elan.1140070308 Zobrazit plný text záznamu Plný text