摘要
实验通过连续7 d投喂各含有100 mg·kg^(-1)呋喃西林、呋喃唑酮、呋喃它酮和呋喃妥因的饲料,研究4种硝基呋喃药物在青石斑鱼(Epinephelus awoara)肌肉中的消除规律。采用超高效液相色谱串联质谱(UPLCMS/MS)检测青石斑鱼肌肉中的氨基脲(SEM)、3-氨基-2-恶唑基酮(AOZ)、5-甲基吗啉-3-氨基-2-唑烷基酮(AMOZ)和1-氨基-2-内酰脲(AHD)的质量分数,并用内标法定量。结果表明,SEM、AOZ、AMOZ和AHD在石斑鱼背肌的峰浓度最大值依次为1 104.10μg·kg^(-1)、781.09μg·kg^(-1)、679.75μg·kg^(-1)和437.18μg·kg^(-1)。4种硝基呋喃代谢物在石斑鱼肌肉组织中的消除规律大致相似。SEM、AHD、AOZ和AMOZ半衰期时间的长短顺序为23.90 d、23.10 d、22.35 d和21.00 d。SEM在肌肉中消除最慢。消除到第163天时,SEM、AOZ、AMOZ和AHD在肌肉中的质量分数仍然高于液质检出限(0.5μg·kg^(-1))。建议硝基呋喃药物应禁止用于石斑鱼疾病的预防或治疗中。
To investigate the accumulation and elimination of four nitrofuran metabolites in muscle of grouper, we fed the groupers with 100 mg1kg -1 of nitrofurantoin, furazolidone, furaltadone and nitrofurazone for seven days. The concentrations of semicarbazide (SEM), 3-amino-2-oxazolidone (AOZ), 5-morpholinomethyl-3-amino-2-oxazolidone (AMOZ) and 1-aminohydantoin (AHD) in muscle were determined by UPLC-MS/MS and quantified by internal standard method. The maximum concentrations of nitrofuran metabolites in grouper muscle are as follows: SEM: 1 104.10 μg.kg- 1, AOZ: 781.09 μg.kg-1, AMOZ: 679.75 μg.kg-1 and AHD: 437.18 μg.kg-1. The rules of elimination for the four nitrofuran metabolites in grouper muscle are similar. The half-life time of nitro- furan metabolites in grouper muscle is as follows: SEM: 23.90 d, AHD: 23.10 d, AOZ: 22.35 d and AMOZ: 21.00 d. The eliminating rate of SEM is the lowest. By 163rd day of elimination, the concentrations of SEM, AOZ, AMOZ and AHD in grouper muscle had still been over 0.5 μg.kg-1. It is suggested that nitrofurans should be banned in the prevention or treatment of grouper disease.
出处
《南方水产科学》
CAS
CSCD
北大核心
2018年第1期60-67,共8页
South China Fisheries Science
基金
国家科技支撑计划项目(2015BAK36806,2015BAD17803)
国家农产品质量安全风险评估项目(GJFP201501201,GJFP201700901)
广东省海洋渔业科技与产业发展专项(A201501C02)
现代农业产业技术体系建设专项资金项目(CARS-47)
关键词
青石斑鱼
硝基呋哺药物
消除规律
超高效液相串联质谱
Epinephelus awoara
nitrofurans
rule of elimination
ultra-high performance liquid chromatography tandem mass