a broad‐spectrum antibiotic that is frequently used in aquaculture on account of its excellent antibacterial properties. In this study, both the enzyme‐linked immunosorbent assay (ELISA) and high‐performance liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) methods were used to analyze the content of residual 3‐amino‐2‐oxazolidinone (AOZ), a metabolite of furazolidone in Tilapia tissue. Homogenized
呋喃唑酮是一种广谱抗生素,由于其出色的抗菌性能而常用于
水产养殖。在这项研究中,酶联免疫吸附测定(ELI
SA)和高效
液相色谱-串联质谱(LC-MS / MS)方法均用于分析残留的3-
氨基-2-
恶唑烷酮(AOZ)的含量,是罗非鱼中
呋喃唑酮的代谢产物组织。将均质的鱼样品掺入不同量的AOZ,然后将酸
水解和均质组织与2-NBA(2-硝基
苯甲醛)混合衍生化后,进行样品净化,并衍生出2-
硝基苯基亚甲基-3-
氨基分析了2-
恶唑烷酮(NPAOZ)。使用LC-MS / MS方法,观察到的浓度Y和加标浓度×之间存在线性关系:Y = 0.4518X-0.0166,R 2 = 0.9972。ELI
SA方法的线性方程为Y = 0.9322X + 0.5168,R 2 = 0.9066。这些结果表明,ELI
SA方法可能会高估低浓度下的残留AOZ含量。已知添加物的检出限和回收率为0.05μgkg -1aLC-MS / M