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.
Similar content being viewed by others
References
Sadler PJ, Sue RE (1994) The chemistry of gold drugs. WC1H 0PP, London
Bergamini MF, Santos DP, Zanoni MVB (2009) J Braz Chem Soc 20:100–106
Kalcher K (1986) Fresenius J Anal Chem 325:181–185
Cai X, Kalcher K, Neuhold C, Diewald W, Magee RJ (1993) Analyst 118:53–57
Kalcher K, Greschonig H, Pietsch R (1987) Fresenius J Anal Chem 327:513–517
Vytras K, Svancara I, Renger F, Srey M, Vankova R, Hvizdalova M (1993) Collect Czech Chem Commun 58:2039–2042
Kolbl G, Kalcher K, Voulgaropoulos A (1992) Fresenius J Anal Chem 342:83–86
Gao Z, Li P, Dong S, Zhao Z (1990) Anal Chim Acta 232:367–376
Peng T, Li H, Wang S (1993) Analyst 118:1321–1324
Wang C, Zhang H, Sun Y, Li H (1998) Anal Chim Acta 361:133–139
Navratilova Z, Kula P (2000) Fresenius J Anal Chem 367:369–372
Lack B, Duncan J, Nyokong T (1999) Anal Chim Acta 385:393–399
Kavanoz M, Gulce H, Yildiz A (2004) Turk J Chem 28:287–297
Alarnes-Varela G, Costa-Garcia A (1997) Electroanalysis 9:1262–1266
Ye R, Khoo SB (1999) Analyst 124:353–360
Maleki N, Safavi A, Tajabadi F (2006) Anal Chem 78:3820–3826
Safavi A, Maleki N, Momeni S, Tajabadi F (2008) Anal Chim Acta 625:8–12
Safavi A, Maleki N, Moradlou O (2008) Electroanalysis 20:2158–2162
Maleki N, Safavi A, Tajabadi F (2007) Electroanalysis 19:2247–2250
Safavi A, Maleki N, Moradlou O, Tajabadi F (2006) Anal Biochem 359:224–229
Safavi A, Maleki N, Ershadifar H, Tajabadi F (2010) Anal Chim Acta 674:176–181
Safavi A, Maleki N, Tajabadi F (2007) Analyst 132:54–58
Kula P, Navratilova Z (2001) Electroanalysis 13:795–798
Mironov IV, Makotchenko EV (2009) J Solution Chem 38:725–737
Baes CF, Mesmer RE (1976) The hydrolysis of cations. Wiley, New York
Wang S, Qian K, Bi XZ, Huang W (2009) J Phys Chem C 113:6505–6510
Zare HR, Golabi SM (1999) J Electroanal Chem 464:14–23
Ingle JD, Crouch SR (1988) Spectrochemical analysis. Prentice-Hall Inc, USA
Turyan I, Mandler D (1993) Anal Chem 65:2089–2209
Acknowledgments
The authors wish to acknowledge the support of this work by Shiraz University Research Council.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Absalan, G., Akhond, M. & Ershadifar, H. Ion exchange ability of N-octylpyridinium hexafluorophosphate in carbon ionic liquid electrode for efficient adsorptive preconcentration and selective determination of ultratrace gold chlorocomplexes. J Solid State Electrochem 19, 1113–1121 (2015). https://doi.org/10.1007/s10008-014-2720-8
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10008-014-2720-8