Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2557
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Title: Determination of selected antibiotics in the Victoria Harbour and the Pearl River, South China using high-performance liquid chromatography-electrospray ionization tandem mass spectrometry
Authors: Xu, WH
Zhang, G
Zou, SC
Li, X 
Liu, YC
Issue Date: Feb-2007
Source: Environmental pollution, Feb. 2007, v. 145, no. 3, p. 672-679
Abstract: Nine selected antibiotics in the Victoria Harbour of Hong Kong and the Pearl River at Guangzhou, South China, were analyzed using high-performance liquid chromatography-electrospray ionization tandem mass spectrometry. The results showed that the concentrations of antibiotics were mainly below the limit of quantification (LOQ) in the marine water of Victoria Harbour. However, except for amoxicillin, all of the antibiotics were detected in the Pearl River during high and low water seasons with the median concentrations ranging from 11 to 67 ng/L, and from 66 to 460 ng/L, respectively; and the concentrations in early spring were about 2-15 times higher than that in summer with clearer diurnal variations. It was suggested that the concentrations of antibiotics in the high water season were more affected by wastewater production cycles due to quick refreshing rate, while those in the low water season may be more sensitive to the water column dynamics controlled by tidal processes in the river.
Keywords: Antibiotics
Water
High performance liquid chromatography (HPLC)
Tandem mass spectrometry
Hong Kong
Pearl River
China
Publisher: Pergamon Press
Journal: Environmental pollution 
ISSN: 0269-7491
EISSN: 1873-6424
DOI: 10.1016/j.envpol.2006.05.038
Rights: Environmental Pollution © 2006 Elsevier. The journal web site is located at http://www.sciencedirect.com.
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