NDLI: Ion exchange ability of N-octylpyridinium hexafluorophosphate in carbon ionic liquid electrode for efficient adsorptive preconcentration and selective determination of ultratrace gold chlorocomplexes

Content Provider	Springer Nature Link
Author	Absalan, Ghodratollah Akhond, Morteza Ershadifar, Hamid
Copyright Year	2015
Abstract	A new application of a carbon ionic liquid electrode (CILE) has been explored for preconcentration and quantification of trace amount of Au(III) chlorocomplexes. The procedure is based on the accumulation of tetrachloroaurate complexes at the electrode surface under an open circuit potential condition followed by cyclic voltammetry (CV) and differential pulse cathodic stripping voltammetry (DPCSV). An ion exchange mechanism has been proposed for efficient and fast accumulation of Au(III) chlorocomplexes. Effects of different experimental parameters such as electrolyte concentration, pH, and preconcentration time on the voltammetric signals were investigated. It was found that under the optimized experimental conditions, the linear range of measurement and the detection limit were 5.00 × 10−9–2.25 × 10−6 and 0.80 × 10−9 mol L−1, respectively. Possible interference from coexisting ions was also studied. The procedure was applied for determination of gold in water and human blood serum samples, and acceptable accuracy was achieved.
Starting Page	1113
Ending Page	1121
Page Count	9
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	19
Issue Number	4
e-ISSN	14330768
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-01-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ion exchange Carbon ionic liquid electrode Gold Stripping voltammetry Preconcentration Physical Chemistry Electrochemistry Energy Storage Characterization and Evaluation of Materials Analytical Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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