开发和验证使用液态染色学高分辨率质谱法 (LC-HRMS) 对赛马的性能增强药物的一般性血查方法
Izabela Lomnicka1, Saurabh Dubey2, Pamela Waller1
1Equine Medication Surveillance Laboratory (EMSL), Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA.
Drug testing and analysis
|July 30, 2024
概括
这项研究引入了一种快速,自动化测试,用于检测赛马中使用液态染色学高分辨率质谱法 (LC-HRMS) 检测禁用药物. 该方法简化了样品的准备,使许多化合物的有效选成为可能.
科学领域:
- 分析化学 分析化学
- 法医毒理学 法医毒理学
- 马体育医学 马体育医学
背景情况:
- 在生物样本 (血,尿液) 中进行传统的药物查需要费力和耗时的提取方法.
- 现有的程序限制了赛马中禁止物质的高通量分析.
研究的目的:
- 开发和验证一种高通量,自动化测试,用于选马类血中多种类型的禁止药物.
- 建立一个高效的初始测试程序,使用液体染色学高分辨率质谱法 (LC-HRMS).
主要方法:
- 使用自动化Biotage Extrahera系统和OASIS HLB 96井板,对600μL等离子体量进行固态提取 (SPE).
- 通过使用热Q精确质谱仪进行液体染色学高分辨率质谱学 (LC-HRMS) 分析.
- 检测基于保留时间和精确质量 (5 ppm宽容) 在正负电离模式.
主要成果:
- 在13分钟运行时间内对300多个药物标进行验证的选方法.
- 证明了灵敏度,特异性,提取回收和精度.
- 该方法支持无限数量的药物标,这是由于全扫描质谱学.
结论:
- 开发的自动化LC-HRMS测定是一种强大而高效的初始测试程序,用于赛马中的禁止物质.
- 与传统的提取技术相比,这种高通量方法显著减少了分析时间.
- 该试验的可扩展性允许未来的扩展包括更广泛的药物标.
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