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中文摘要：
目的了解广州地区鱼肉组织中喹诺酮类药物的残留情况。方法于2006年9—10月，在广州市S1～S5地区的5个大型农贸市场采集鳗鱼（Anguilla japonica）、加洲鲈鱼（Micropterus salmoides）、黄鳝（Monopterus albus）和草鱼（Ctenopharyngodon idellus）4种淡水养殖鱼样品。采用反相高效液相色谱法（HPLC）检测4种鱼类体内环丙沙星（ciprofloxacin，CPFX）、诺氟沙星（norfloxacin，NFLX）、恩诺沙星（enrofloxacin，ENFX）的残留量。结果诺氟沙星在采自广州市5个区的4种淡水鱼鱼肉组织中均被检出，检出的含量范围为2．19～192．8ng/g，平均含量为21．26ng／g；环丙沙星在鱼肉组织中的检出率为40％，含量范围为0—25．36ng／g，其平均含量为4．34ng／g；恩诺沙星在鱼肉组织中的检出率为45％，平均含量为6．83ng／g。其中，加州鲈鱼和鳗鱼体内3种药物检出率最高，加州鲈鱼肌肉中诺氟沙星、环丙沙星和恩诺沙星检出率分别为100％，40％和100％；鳗鱼肌肉组织中3种药物检出率分别为100％，40％和80％；黄鳝和草鱼肌肉中恩诺沙星检出率都较低，分别为20％和0％。3种药物在肝脏中的平均残留含量要高于其在肌肉中的平均残留含量。结论广州地区鱼肉组织中喹诺酮类药物的残留量基本符合NY5070--2002《水产品中鱼药残留限量》中的规定。
英文摘要：
Objective To investigate the residues of antibiotics such as quinolones in fishes from Guangzhou aquatic products market. Methods The residues of three kinds of quinolones （NFLX, CPFX and ENFX） in four kinds of fishes collected from five agriculture products markets in Guangzhou were determined by RP-HPLC. Results NFLX was detected in all samples,ranged from 2.19-192.8 ng/g with the maximum concentration of 192.8 ng/g,the detection rate of CPFX was 40% with the average concentration of 4.34 ng/g,ranged form 0-25.36 ng/g, the detection rate of ENFX was 45% with the average concentration of 6.83 ng/g. Three kinds of quinolones were found with high detection rate in Micropterus salmoides and A nguiUajaponica,the average detection rates of NFLX,CPFX and ENFX in muscle tissues ofMicropterus salmoides were 100% ,40% and 100% respectively, that in Anguilla japonica were 100% ,40% and 80% respectively. Low rate of ENFX was found in Monopterus albus and Ctenopharyngodon idellus muscle tissues, the average detection rates were 20% and 10%. Higher pharmaceuticals concentrations were detected in the liver than those in the muscle tissue. Conclusion The residues of quinolones in the muscle tissue of fish sold in Guangzhou is considered eligible based on the related standards.
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