Abstract：
:A feasible method has been optimized to simultaneously determine multiclass antibiotic residues, including sulfonamides, fluoroquinolones, trimethoprim, and chloramphenicol in urban riverine water and wastewater by off-line solid phase extraction and high-performance liquid chromatography coupled with a diode-array ultraviolet detector and a fluorescence detector. Internal standard and standard addition methods were used in combination to identify and quantify these antibiotics to compensate for the matrix interference. The method quantification limits (MQLs) were determined to be 0.035 to 0.100 microg/L and 0.100 to 0.300 microg/L for the riverine water and wastewater, respectively. Recoveries of the investigated antibiotics ranged from 63 to 126%. Sulfamethoxazole was the most frequently detected antibiotic residue in Guangzhou section of the Major Pearl River, South China, with a maximum level of 0.510 microg/L. Fluoroquinolone antibiotics were relatively less detected with a maximum level of 0.459 microg/L. The maximum concentration of sulfamethoxazole reached 5.597 microg/L in the raw wastewater from a large-scale sewage treatment plant in Guangzhou city. Around 30% of sulfamethoxazole might survive the primary clarification and biotreatment processes in the sewage treatment plant. None of the investigated antibiotics have been found above MQLs in the final effluent after chlorine disinfection.
journal_name
Environ Toxicol Chemjournal_title
Environmental toxicology and chemistryauthors
Peng X,Tan J,Tang C,Yu Y,Wang Zdoi
10.1897/06-650.1subject
Has Abstractpub_date
2008-01-01 00:00:00pages
73-9issue
1eissn
0730-7268issn
1552-8618pii
06-650journal_volume
27pub_type
杂志文章abstract：:We analyzed the fate of organotins in seawater and sediments from Tokyo Bay, Japan, by gas chromatography/inductively coupled plasma mass spectrometry. We also measured the toxicity of methylated butyltins by in vitro bioassays, the retinoid X receptor (RXR) activation method, and the marine luminescent bacterium Vibr...
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pub_type： 杂志文章,收录出版
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更新日期：2003-03-01 00:00:00
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更新日期：2007-07-01 00:00:00
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更新日期：2008-04-01 00:00:00
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更新日期：2010-06-01 00:00:00
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