Citation: Shuai Hua Zhang, Yuan Yuan Yang, Dan Dan Han, Chun Wang, Xin Zhou, Xiao Huan Zang, Zhi Wang. Determination of triazine herbicide residues in water samples by on-line sweeping concentration in micellar electrokinetic chromatography[J]. Chinese Chemical Letters, ;2008, 19(12): 1487-1490. doi: 10.1016/j.cclet.2008.09.017 shu

Determination of triazine herbicide residues in water samples by on-line sweeping concentration in micellar electrokinetic chromatography

Key Laboratory of Bioinorganic Chemistry, College of Sciences, Agricultural University of Hebei, Baoding 071001, China

Received Date: 11 June 2008

Fund Project: This project is sponsored by the Natural Science Foundation of Hebei (Nos. B2006000413, B2008000210).

A new method for the determination of atrazine, simazine and prometryn in water samples by on-line sweeping concentration technique in micellar electrokinetic chromatography (MEKC) was developed. Various parameters affecting sample enrichment and separation efficiency were systematically studied. Compared with the conventional MEKC method, up to 60-200-fold improve-merit in concentration sensitivity was achieved in terms of peak height by using this sweeping injection technique. The compound strychnine was used as the internal standard for the improvement of the experimental reproducibility. The limits of detection (S/ N=3:1) for atrazine, simazine and prometryn were 9, 10 and 0.5 ng mL^-1, respectively. This method has been successfully applied to the analysis of atrazine, simazine and prometryn in lake, steam and ground water.
- Triazine herbicides,
- On-line concentration,
- MEKC,
- Sweeping,
- Water samples
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