Determination of four fluoroquinolone antibiotics in tap water in Guangzhou and Macao |
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Authors: | Yiruhan Yan-Wen Li Peng Gao Yi-Ping Tai Yan Zhang Zhi-Li Ruan Jia-Wei Xu |
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Institution: | Department of Environmental Engineering, Jinan University, Huangpudadaoxi 601, Guangzhou 510632, China |
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Abstract: | Four fluoroquinolone antibiotics (norfloxacin, ciprofloxacin, lomefloxacin, and enrofloxacin) in tap water in Guangzhou and Macao were analyzed using high performance liquid chromatography fluorescence detection. The results showed that all target antibiotics were detected in high rate both in Guangzhou (77.5%) and Macao (100%), ranging from 1.0 to 679.7 ng/L (SD ≤ 37.6) in Guangzhou, and from 2.0 to 37.0 ng/L (SD ≤ 2.5) in Macao. The fluoroquinolone antibiotics pollution in tap water widely distributes in Guangzhou and Macao. In addition, the effect of rainfall on concentration of fluoroquinolone antibiotics in south China was also investigated. Our result indicates that the antibiotic concentration in tap water in Guangzhou tends to obviously reduce at the beginning of rainy season, even decreases below the limit of quantification immediately. Thus, it was clarified that the heavy rain in south China has the function of reducing the fluoroquinolone antibiotics concentrations in tap water. |
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Keywords: | Fluoroquinolone antibiotics Tap water High performance liquid chromatography (HPLC) Guangzhou Macao Heavy rain |
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