Copper Ions In Aqueous Solution Research Articles

Electrochemically assisted metal uptake by cation exchange based chemically modified electrodes

Carbon paste electrodes containing powdered cation exchange resin (Amberlite IR120) have been fabricated and applied to the uptake of copper ion in aqueous solution. The copper uptake reaction was carried out at open circuit and at different cathodic potentials. Linear potential sweep voltammetry was used to quantify the accumulated ions. With the application of an optimum cathodic potential, the amount of copper absorbed increased four to nine-fold in comparison with similar uptake at open circuit conditions. The effect of different resin size employed in the chemically modified electrodes, on the sensitivity of the electrode response was also studied as a function of peak current.

Mechanism of oxidation of the 2-hydroxycyclohexyl radical to cyclopentanecarbaldehyde by copper ions in aqueous solutions

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of oxidation of the 2-hydroxycyclohexyl radical to cyclopentanecarbaldehyde by copper ions in aqueous solutionsMohamad Masarwa, Haim Cohen, and Dan MeyersteinCite this: Inorg. Chem. 1991, 30, 8, 1849–1854Publication Date (Print):April 1, 1991Publication History Published online1 May 2002Published inissue 1 April 1991https://doi.org/10.1021/ic00008a031RIGHTS & PERMISSIONSArticle Views73Altmetric-Citations16LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (700 KB) Get e-Alerts Get e-Alerts

Photothermal Deflection Spectroscopy for Ultra Trace Analysis of Cobalt and Copper Ions

Abstract Photothermal deflection spectroscopy (PDS) is applied for the absolute determination at room temperature of ultra trace concentration of cobalt and copper ions in aqueous solution. The samples have been prepared by percolating 2 liters of solution prepared from Merck Titrisol Standards in 200 mg Merck-I cationic exchange resin. With the present experimental conditions the detection limit is 20 ppb and 200 ppb for copper and cobalt ions respectively within an overall accuracy of 5%. The response of the spectrometer has been calibrated using ICP technique.

Photothermal Deflection Spectroscopy for Ultra Trace Analysis of Cobalt and Copper Ions

Abstract Photothermal deflection spectroscopy (PDS) is applied for the absolute determination at room temperature of ultra trace concentration of cobalt and copper ions in aqueous solution. The samples have been prepared by percolating 2 liters of solution prepared from Merck Titrisol Standards in 200 mg Merck-I cationic exchange resin. With the present experimental conditions the detection limit is 20 ppb and 200 ppb for copper and cobalt ions respectively within an overall accuracy of 5%. The response of the spectrometer has been calibrated using ICP technique.

ChemInform Abstract: METAL IONS AND HYDROGEN PEROXIDE. CATALASE‐LIKE ACTIVITY OF COPPER(2+) ION IN AQUEOUS SOLUTION AND ITS PROMOTION BY THE COORDINATION OF 2,2′‐BIPYRIDYL

Chemischer InformationsdienstVolume 10, Issue 32 Physical Inorganic Chemistry ChemInform Abstract: METAL IONS AND HYDROGEN PEROXIDE. CATALASE-LIKE ACTIVITY OF COPPER(2+) ION IN AQUEOUS SOLUTION AND ITS PROMOTION BY THE COORDINATION OF 2,2′-BIPYRIDYL H. SIGEL, H. SIGELSearch for more papers by this authorK. WYSS, K. WYSSSearch for more papers by this authorB. E. FISCHER, B. E. FISCHERSearch for more papers by this authorB. PRIJS, B. PRIJSSearch for more papers by this author H. SIGEL, H. SIGELSearch for more papers by this authorK. WYSS, K. WYSSSearch for more papers by this authorB. E. FISCHER, B. E. FISCHERSearch for more papers by this authorB. PRIJS, B. PRIJSSearch for more papers by this author First published: August 7, 1979 https://doi.org/10.1002/chin.197932030Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume10, Issue32August 7, 1979 RelatedInformation

Decay kinetics of aryloxy and semiquinone radicals in the presence of copper ions

AbstractThe decay kinetics of aryloxy and semiquinone radicals in the presence of copper ions in aqueous solutions has been studied by means of the flash photolysis technique. The radicals are involved in electron transfer reactions and those leading to the formation of intermediate complexes with copper ions. The complexes of p‐benzosemiquinone anion radicals and 2‐hydroxyphenoxy radicals with cupric ions decay in bimolecular self‐reactions at a much slower rate than the original radicals. The increased stability of the complexes compared with the initial radicals is attributed to partial delocalization of the unpaired electron over the electron shell of copper and to steric hindrances in the self‐reactions of complexes.

Formation de complexes en solution aqueuse entre le cuivre et quelques amines aromatiques—II

Using rotating copper electrodes, electrochemically coppered, it has been possible to set up the thermodynamic diagram of complex salts of copper ions in aqueous solution with some aromatic amines, derived from aniline, in presence of alkali sulphate. The apparent formation constants of the different complexes have been measured.