Citation: Qing-Xiang Zhou, Yuan-Yuan Gao. Combination of ionic liquid dispersive liquid-phase microextraction and high performance liquid chromatography for the determination of triazine herbicides in water samples[J]. Chinese Chemical Letters, ;2014, 25(05): 745-748. doi: 10.1016/j.cclet.2014.01.026 shu

Combination of ionic liquid dispersive liquid-phase microextraction and high performance liquid chromatography for the determination of triazine herbicides in water samples

Qing-Xiang Zhou ^a,, ,
Yuan-Yuan Gao ^b

1.
a College of Geosciences, China University of Petroleum Beijing, Beijing 102249, China;
2.
b College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China

Corresponding author: Qing-Xiang Zhou,
Received Date: 16 December 2013
Available Online: 13 January 2014
Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 21377167) (No. 21377167) Program for New Century Excellent Talents in University (No. NCET-10-0813). (No. NCET-10-0813)

A temperature-controlled ionic liquid dispersive liquid-phasemicroextraction in combination with high performance liquid chromatography was developed for the enrichment and determination of triazine herbicides such as cyanazine, simazine, and atrazine in water samples. 1-Octyl-3-methylimidazolium hexafluorophosphate ([C₈MIM][PF₆]) was selected as the extraction solvent. Several experimental parameters were optimized. Under the optimal conditions, the linear range for cyanazine was in the concentration range of 0.5-80 μg/L and the linear range for simazine and atrazine was in the range of 1.0-100 mg/L. The limit of detection (LOD, S/N = 3) was in the ranges of 0.05-0.06 μg/L, and the intra day and inter day precision (RSDs, n = 6)was in the ranges of 3.2%-6.6% and 4.8%-8.9%, respectively. Four real water samples were analyzed with the developedmethod, and the experimental results showed that the spiked recoveries were satisfactory. All these exhibited that the developed method was a valuable tool for monitoring such pollutants.
- Temperature-controlled ionic liquid,
- dispersive liquid-phase microextraction,
- Ionic liquid,
- Triazine herbicides,
- High performance liquid chromatography
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