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Int. J. Mol. Sci. 2012, 13(6), 6863-6872; doi:10.3390/ijms13066863
Article

Determination of Aniline and Its Derivatives in Environmental Water by Capillary Electrophoresis with On-Line Concentration

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Received: 26 March 2012 / Revised: 27 April 2012 / Accepted: 17 May 2012 / Published: 5 June 2012
(This article belongs to the Section Green Chemistry)
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Abstract

This paper describes a simple, sensitive and environmentally benign method for the direct determination of aniline and its derivatives in environmental water samples by capillary zone electrophoresis (CZE) with field-enhanced sample injection. The parameters that influenced the enhancement and separation efficiencies were investigated. Surprisingly, under the optimized conditions, two linear ranges for the calibration plot, 1–50 ng/mL and 50–1000 ng/mL (R > 0.998), were obtained. The detection limit was in the range of 0.29–0.43 ng/mL. To eliminate the effect of the real sample matrix on the stacking efficiency, the standard addition method was applied to the analysis of water samples from local rivers.
Keywords: capillary electrophoresis; water analysis; environmental analysis; aromatic amines; on-line concentration capillary electrophoresis; water analysis; environmental analysis; aromatic amines; on-line concentration
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Liu, S.; Wang, W.; Chen, J.; Sun, J. Determination of Aniline and Its Derivatives in Environmental Water by Capillary Electrophoresis with On-Line Concentration. Int. J. Mol. Sci. 2012, 13, 6863-6872.

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