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Application of Polymer Monolith Microextraction to the Determination of Triazines in Cereal Samples Combined with High-Performance Liquid Chromatography

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Abstract

A simple and sensitive method based on polymer monolith microextraction (PMME) using a poly(methacrylic acid-co-ethylene glycol dimethacrylate) (poly(MAA-EGDMA)) monolith has been developed for the determination of triazines combined with high-performance liquid chromatography. The method is evaluated with several parameters including linear range, limits of detection, limits of quantification, and reproducibility after optimizing PMME experimental conditions. Sample flow rate, sample volume, eluent flow rate, and sample pH have been investigated and optimized in detail with respect to extraction efficiency of the target compounds from cereal samples. Good linearities are obtained for six triazines with the correlation coefficients (R 2) above 0.9977. Limits of detection based on three times of standard deviations of blank by seven replicates are in the range of 1.1−2.8 μg kg−1. Good reproducibility of the method is obtained, yielding the intra-day and inter-day relative standard deviations less than 4.3% and 5.5%, respectively. The method has been proved to be efficient, fast, and sensitive for the quantitative analysis of triazines in practical cereal samples.

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Acknowledgments

The authors would like to thank Prof. Yu-Qi FENG of Wuhan University for experimental assistance. The project was supported by Jilin Provincial Science and Technology Department (201105102) and Basic Scientific Research Fund of Jilin University (2008).

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Authors and Affiliations

  1. College of Chemistry, Jilin University, Renmin Street #5988, Changchun, 130022, China

    Riyan Su, Qingwen Liu, Shujuan Fan, Huihui Ma & Qiong Jia

  2. Jilin Entry and Exit Inspection and Quarantine Bureau of China, Changchun, 130062, People’s Republic of China

    Xiao Zhou

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  1. Riyan Su
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  2. Qingwen Liu
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  3. Shujuan Fan
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  4. Huihui Ma
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  5. Xiao Zhou
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  6. Qiong Jia
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Correspondence to Qiong Jia.

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Su, R., Liu, Q., Fan, S. et al. Application of Polymer Monolith Microextraction to the Determination of Triazines in Cereal Samples Combined with High-Performance Liquid Chromatography. Food Anal. Methods 5, 1040–1046 (2012). https://doi.org/10.1007/s12161-011-9339-5

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  • DOI: https://doi.org/10.1007/s12161-011-9339-5

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