Comparison of the analytical performance of two columns used for determination of chromium(VI) in water

• Autorzy: Michalski R.
• Języki publikacji: EN

Abstrakty

EN

In the different compartments of the environmental chromium occurs mainly in the oxidation states (III) and (VI). Although Cr(III) is an essential trace element for humans, Cr(VI) is highly cancerogenic and mutagenic. It is, therefore, necessary for risk assessment not only to deter-mine total chromium, but also to determine chromium species, especially Cr(VI). Hexavalent chromium can be determined as chromate (CrO42-) by ion chromatography. In recent years ion chromatography has became a powerful technique for determination of ions, including inorganic and or-ganic anions and cations. In the work discussed in this paper an ion-chromatographic method using ion-exchange columns and direct UV detection for determination of Cr(VI) in water samples has been validated. The analytical performance of Dionex IonPac AS7 and CS5A columns has been compared and method linearity and sensitivity, limit of determination, and limit of quantification calculated from peak area and peak height are given.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2005
• Tom: No. 15
• Strony: 322--328
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Michalski R.

• Institute of Environmental Engineering of the Polish Academy of Science, Skłodowska-Curie 34, 41-819 Zabrze, Poland

Bibliografia

• [1] J. Kotaś and Z. Stasicka, Environ. Pollut., 107, 263 (2000)
• [2] EN ISO-1233. Water Quality – Determination of Chromium. Atomic Absorption Spectrometric Methods, 1996
• [3] ISO 11885. Determination of 33 Elements by Inductively Coupled Plasma Atomic Emission Spectroscopy, 1996
• [4] Council Directive 98/83/EC of November 1998. The Water Intended for Human Consumption, O. J. L., 330, 5.12.1998
• [5] Polish Regulation for Drinking Water. J. of Laws., 4.9.2000, item, 937, 2000
• [6] P.R. Haddad and P.E. Jackson, Ion Chromatography: Principles and Applications, Elsevier, New York, 1990
• [7] Y. Liu and S. Mou, Microchem. J., 75, 79 (2003)
• [8] H. Lu, S. Mou, R. Deng, and J.M. Riviello, Microchem. J., 64, 1 (2000)
• [9] M. Pantsar-Kallio and P.K.G. Manninen, J. Chromatogr., 750, 89 (1996)
• [10] M. Bittner and J.A.C. Broekaert, Anal. Chim. Acta, 364, 31 (1998)
• [11] E. Poboży, E. Wojasińska, and M. Trojanowicz, J. Chromatogr., 736, 141 (1996)
• [12] R. Michalski, Chem. Anal., 49, 213 (2004)
• [13] B. Gammelgaard, Y-P. Liao, and O. Jons, Anal. Chim. Acta, 354, 107 (1997)
• [14] Dionex Application Note 144, Determination of Hexavalent Chromium in Drinking Water Using Ion Chromatography, 2002
• [15] USEPA Method 218.6: Determination of Dissolved Hexavalent Chromium by Ion Chromatography with Postcolumn Reaction, 1996
• [16] R. Michalski, Pol. J. Environ. Stud., 13, 73 (2004)
• [17] R. Michalski, Arch. Environ. Prot., 29, 127 (2003)
• [18] ISO 8466-1. Water Quality – Calibration and Evaluation of Analytical Methods and Estimation of Performance Characteristics Part 1: Statistical Evaluation of the Linear Calibration Function, 1990
• [19] ISO/PDTS 16489 (Final draft). Equivalence of Analytical Methods Based on the Comparison of the Results of the Analyses and Their Statistical Evaluation, 2004