一种经过验证的方法,用于用两个不同的10μl体积吸收微样装置在相同的设置中对毛细体脂乙醇16:0/18:1定量化
Trine N Andreassen1, Marina Gule1, Hilde Havnen1
1Department of Clinical Pharmacology, St. Olavs University Hospital, Trondheim 7006, Norway.
Journal of analytical toxicology
|January 30, 2025
概括
使用体积吸收微采样 (VAMS) 装置在毛细血管血液中量化酸乙醇 (PEth) 是可行的. 两种Mitra和Capitainer设备都显示出适用于PEth分析的适用性,Mitra满足所有验证标准.
科学领域:
- 临床化学 临床化学
- 毒理学 毒理学 毒理学
- 生物标记分析 生物标记分析
背景情况:
- 脂乙醇 (PEth) 是一种可靠的酒精消费生物标志物,传统上测量在静脉全血中.
- 人们越来越感兴趣在毛细血管血液中量化药物和生物标志物,以减少侵入性采样.
- 卷度吸收微采样 (VAMS) 装置为毛细血管血液采集提供了一个有前途的方法.
研究的目的:
- 适应和验证一种实验室方法,用于在毛细血管干血斑点 (DBS) 样本中量化PET.
- 为了评估两个VAMS设备的性能,Capitainer®B Vanadate和Mitra®,用于PEth分析.
- 为了比较PEth量化结果从毛细血管DBS样本与建立静脉血液测量.
主要方法:
- 使用两个VAMS设备 (Capitainer和Mitra) 在毛细血管DBS中量化PEth的方法开发和验证.
- 采用了自动抽样,允许同时对两种VAMS类型进行分析.
- 验证包括在定义的测量范围内评估性能,并将结果与验证的静脉血液方法进行比较.
主要成果:
- 米特拉设备满足了所有预先确定的PEth量化验证标准,在0.03到4.0μM的范围内.
- 卡比塔纳设备符合大多数标准,但在PEth水平≥0.5μM (-17.1%至-20.5%) 的精度偏差.
- 相关性分析表明,Capitainer和静脉血液结果之间存在可接受的比例平均差异 (-7.6%),没有恒定偏差.
结论:
- 卡比塔纳和米特拉VAMS设备都适合在毛细血管血液中进行PET分析.
- 米特拉装置证明完全符合验证标准,使其在毛细血管PEth量化方面具有高度可靠性.
- 卡比塔纳装置表现出可接受的性能,尽管在更高度的准确性需要考虑特定应用.
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