一个用 DESI-MS/MS 构建的干血斑点的高通量检测平台
Siqi Gao1, Jinhui Zhao2, Yue Guan3
1Department of Sanitary Inspection, School of Public Health, Harbin Medical University, Harbin, 150086, P. R. China; Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, Shanghai, 201499, P. R. China.
Analytica chimica acta
|February 5, 2026
概括
这项研究优化了使用脱电喷雾质谱法 (DESI-MS/MS) 分析干血斑点 (DBS) 的方法. 开发的协议能够准确检测代谢变化,证明了对新生儿查等临床应用的实用性.
科学领域:
- 代谢学 代谢学 代谢学
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- 干血斑点 (DBS) 技术在血液采集和代谢物保存方面具有优势.
- DBS在新生儿查和治疗药物监测方面有潜在的应用.
- 脱电喷雾质谱法 (DESI-MS) 是一种快速的技术,但其对DBS的性能需要评估.
研究的目的:
- 开发和优化使用 DESI-MS/MS 来分析 DBS 的代谢资料的协议.
- 为了比较DESI-MS/MS与传统的UPLC-MS/MS在DBS分析中的性能.
- 评估开发的检测代谢变化的方法的可行性.
主要方法:
- 优化了用于DBS的提取溶剂 (ACN:H2O),体积 (300μL) 和方法 (超声波).
- 优化了DESI-MS/MS参数,包括喷雾溶剂 (MeOH:H2O),喷雾速度,针角和毛细血管电压.
- 应用了优化的方法来分析消费糖甜豆奶前后的代谢概况.
主要成果:
- 通过 DESI-MS/MS 实现了一致的数据,广泛的代谢物覆盖范围和可接受的可复制性.
- 在食用含糖大豆奶后,成功检测了受试者的差异性代谢物.
- 与UPLC-MS/MS相比,DESI-MS/MS的表现良好.与UPLC-MS/MS相比,DESI-MS/MS的表现良好.
结论:
- 为DBS代谢分析建立了两个优化的协议.
- 优化的DESI-MS/MS方法显示了与UPLC-MS/MS.相比的或更高的性能.
- 开发的协议对于检测DBS样本中的差异化代谢变化是实用的.
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