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http://dx.doi.org/10.5012/bkcs.2009.30.7.1516

Column Preconcentration and Determination of Cobalt(II)Using Silica Gel Loaded with 1-Nitroso-2-naphthol  

Shin, Eun-Mi (Department of Chemistry, The University of Suwon)
Choi, Hee-Seon (Department of Chemistry, The University of Suwon)
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Abstract
A sensitive technique for the determination of trace Co(II) in various samples after column preconcentration by adsorbing onto silica gel loaded with 1-nitroso-2-naphthol was developed. Several experimental conditions, such as pH of sample solution, the amount of silica gel loaded with 1-nitroso-2-naphthol, the flow rate for adsorption and so forth, were optimized. The interfering effects of diverse concomitant ions were investigated. Fe(III) interfered with more than any other ions, but the interference by Fe(III) was completely eliminated by adjusting the amount of silica gel loaded with 1-nitroso-2-naphthol to 0.30 g. The dynamic range, the correlation coefficient ($R^2$), and the detection limit obtained by the proposed technique were 3.0-140.0 ng m$L^{-1}$, 0.9942, and 1.81 ng m$L^{-1}$, respectively. For validating the technique, the aqueous samples (tap water, reservoir water, stream water, and wastewater) and the plastic samples were used as real samples. Recovery yields of 93.0-107.0% were obtained. These measured data were not different from ICP-MS data at the 95% confidence level by F test. Based on the results of the experiment, it has been found that the proposed technique can be applied to the determination of Co(II) in various real samples.
Keywords
Cobalt; 1-Nitroso-2-naphthol; Silica gel; Preconcentration;
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1 Ferreira, S. L. C.; de Brito, C. F. Anal. Sci. 1999, 15, 189   DOI   ScienceOn
2 Kim, Y. S.; In, G.; Choi, J. M. Bull. Korean. Chem. Soc. 2006, 27, 1557   DOI   ScienceOn
3 Park, C.; Cha, K. Bull. Korean Chem. Soc. 1998, 19, 224
4 Goswami, A.; Singh, A. K. Talanta 2002, 58, 669   DOI   ScienceOn
5 Skoog, D. A.; Holler, F. J.; Crouch, S. R. Principles of Instrumental Analysis, 6th ed.; Thomson Brooks/Cole, U. S. A., 2007; p 20
6 Cassella, R. J.; Salim, V. A.; Jesuino, L. S.; Santalli, R. E.; Ferreira, S. L. C.; Carvalho, M. S. Talanta 2001, 54, 61   DOI   ScienceOn
7 Dean, J. A. Lange's Handbook of Chemistry, 15th ed.; McGraw-Hill: New York, U. S. A., 1999; p 8.97
8 Skoog, D. A.; West, D. M.; Holler, F. J.; Crouch, S. R. Fundamentatals of Analytical Chemistry, 8th ed.; Thomson Brooks/Cole, U. S. A., 2004; p 158
9 Singh, H. B.; Agnihotri, N. K.; Singh, V. K. Talanta 1999, 48, 623   DOI   ScienceOn
10 Lee, H.; Muraoka, Y.; Oshima, M.; Motomizu, S. Anal. Sci. 2004, 20, 183   DOI   ScienceOn
11 Monteil-Rivera, F.: Dumonceau, J. Anal. Bioanal. Chem. 2002, 374, 1105   DOI   ScienceOn
12 Llander, A.; Vaisanen, A. M. Anal. Chim. Acta 2007, 602, 195   DOI   ScienceOn
13 Lemos, V. A.; Santos, J. S.; Nunes, L. S.; Carvalho, M. B.; Baliza, P. X.; Yamaki, R. T. Anal. Chim. Acta 2003, 494, 87   DOI   ScienceOn
14 Bae, Z.; Park, Y.; Lee, S.; Jeon, W.; Chang, H. Bull. Korean Chem. Soc. 1996, 17, 995
15 Lu, X.; Wang, Z.; Geng, Z.; Kang, J.; Gao. J. Talanta 2000, 52, 411   DOI   ScienceOn
16 Oleszczuk, N.; Castro, J. T.; Silva, M. M.; Korn, M.; Weltz, B.; Vale, M. G. Talanta 2007, 73, 862   DOI   ScienceOn
17 Uzawa, A.; Iwamoto, Y.; Okutani, T. Bunseki Kagaku 1996, 45, 955   DOI
18 Manzoori, J. L.; Sorouradin, M. H.; Haji Shabani, A. M. Microchem. J. 1999, 63, 295   DOI   ScienceOn