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    CHEN Wensheng, TAN Huijia, LUO Zhibin, ZHONG Zhixiong, HU Jiequan, SU Guangning, PENG Jie. Determination of Common Antibiotics in Water by Dispersive Liquid-Liquid Microextraction Coupled with Liquid Chromatography[J]. Journal of Environmental Hygiene, 2019, 9(2): 167-171. DOI: 10.13421/j.cnki.hjwsxzz.2019.02.015
    Citation: CHEN Wensheng, TAN Huijia, LUO Zhibin, ZHONG Zhixiong, HU Jiequan, SU Guangning, PENG Jie. Determination of Common Antibiotics in Water by Dispersive Liquid-Liquid Microextraction Coupled with Liquid Chromatography[J]. Journal of Environmental Hygiene, 2019, 9(2): 167-171. DOI: 10.13421/j.cnki.hjwsxzz.2019.02.015
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    Determination of Common Antibiotics in Water by Dispersive Liquid-Liquid Microextraction Coupled with Liquid Chromatography

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      • Abstract
    • Objectives  A method was established for the detection of nine antibiotics in water samples by dispersive liquid-liquid microextraction coupled with liquid chromatography(DLLME-LC).
      Methods  After concentration, extracts were analyzed by LC.
      Results  The calibration curves ranged from 5.00 μg/L to 50.0 μg/L with the correlation coefficients of 0.998 1~0.999 4 for antibiotics. The Limits of Detections (LODs) and limits of quantification(LOQs) were in the range of (0.43~1.57) μg/L and (1.33~5.33) μg/L, respectively. The recoveries for antibiotics were in the range of 66.4%~94.0% with the relative standard deviations (n=5) of 1.5%~6.5%.
      Conclusions  The method was simple, sensitive and accurate, which could be applied to the detection of trace antibiotics in water samples.
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