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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

1,2,* , 1
,
1
 and
1
1 College of Sciences, Northwest A & F University, Yangling, Shaanxi 712100, China 2 State Key Laboratory of Crop Stress Biology in Arid Areas, Yangling 712100, China
* Author to whom correspondence should be addressed.
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 (CC BY 3.0).
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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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