浙江农业学报 ›› 2024, Vol. 36 ›› Issue (7): 1519-1529.DOI: 10.3969/j.issn.1004-1524.20230345

• 动物科学 • 上一篇    下一篇

超高效液相色谱-串联质谱法同时测定畜禽排泄物中15种喹诺酮类药物

裘丞军1(), 侯轩1, 陈凯1, 吴望君1, 周炜1, 段友刚2,*()   

  1. 1.浙江省动物疫病预防控制中心,浙江 杭州 311199
    2.开化县农业事务管理中心,浙江 开化 324300
  • 收稿日期:2023-03-15 出版日期:2024-07-25 发布日期:2024-08-05
  • 作者简介:裘丞军(1984—),男,浙江杭州人,学士,畜牧师,主要研究方向为饲料、兽药及畜产品安全检测。E-mail: 282934553@qq.com
  • 通讯作者: *段友刚,E-mail: kh661628@sohu.com
  • 基金资助:
    浙江省重点研发计划项目(2020C02032);浙江省农业重大技术协同推广计划(2021XTTGXM03)

Simultaneous determination of 15 quinolones in livestock and poultry excrement by UPLC-MS/MS

QIU Chengjun1(), HOU Xuan1, CHEN Kai1, WU Wangjun1, ZHOU Wei1, DUAN Yougang2,*()   

  1. 1. Zhejiang Center of Animal Disease Control, Hangzhou 311199, China
    2. Kaihua County Center of Agricultural Affairs Management, Kaihua 324300, Zhejiang, China
  • Received:2023-03-15 Online:2024-07-25 Published:2024-08-05

摘要:

建立了应用超高效液相色谱-串联质谱法(UPLC-MS/MS)同时测定畜禽排泄物中15种喹诺酮类药物残留量的分析方法。样品经冷冻干燥后粉碎过筛,N,N-二甲基甲酰胺(DMF)和0.1 mol·L-1盐酸溶液混合提取,HLB固相萃取柱净化,UPLC-MS/MS检测,基质匹配校准外标法定量。结果表明:15种喹诺酮在2~50 ng·mL-1浓度范围内线性良好,决定系数(R2)>0.99,检出限为5 μg·kg-1,定量限为10 μg·kg-1,添加量为10、20、500 μg·kg-1浓度时,平均回收率为76.2%~109.0%,相对标准偏差(RSD)为1.3%~12.4%(n=6)。该方法实现了较低的检测限、定量限,较高回收率和稳定性,可应用于畜禽排泄物中喹诺酮类药物残留量的监测,为畜禽排泄物在种植业中的科学施用提供准确指导,为间接监测养殖过程中各喹诺酮类药物的含量提供技术方法,指导养殖企业合理使用抗菌药物。

关键词: 超高效液相色谱-串联质谱(UPLC-MS/MS), 喹诺酮类, 畜禽排泄物

Abstract:

An analytical method for the simultaneous determination of 15 quinolones residues in livestock and poultry excrement by ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was established. The sample was crushed and sieved after freeze-drying, extracted by mixing N, N-dimethylformamide (DMF) and 0.1 mol·L-1 hydrochloric acid solution, purified by HLB solid phase extraction column, detected by UPLC-MS/MS, and quantified by matrix matching calibration external standard method. The results showed that the linearity of 15 quinolones was good in the concentration range of 2-50 ng·mL-1, the coefficient of determination (R2)>0.99, and the detection limit was 5 μg·kg-1, limit of quantitation was 10 μg·kg-1, the average recovery rate was 76.2%-109.0%, relative standard derivation (RSD) was 1.3%-12.4% (n=6) at the concentration of 10, 20 and 500 μg·kg-1. This method has achieved lower detection limit, quantitative limit, higher recovery rate and stability. It can be applied to the monitoring of quinolones residues in livestock and poultry excrement, provide accurate guidance for the scientific application of livestock and poultry excrement in the planting industry, provide technical methods for indirect monitoring of the content of quinolones in the breeding process, and guide the rational use of antibiotics by breeding enterprises.

Key words: UPLC-MS/MS, quinolones, livestock and poultry excrement

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