一个自组装的管管尖 限制访问 半孔多聚烯固相提取 加上毛细血管电泳与二极管阵列检测用于尿样中确定埃纳拉普利尔的尿样
Iara Amorim Carvalho1, Camilla Fonseca Silva1, Keyller Bastos Borges1
1Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei, São João del-Rei, Minas Gerais, Brazil.
Electrophoresis
|March 6, 2025
概括
一种新的管管尖固体相提取方法与毛细血管电泳结合,有效地确定尿液中的埃纳拉普利. 这种绿色分析技术为药物监测提供了高灵敏度和可重复使用性.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 在生物样本中准确确定像埃纳拉普利尔这样的药物对于治疗药物监测和药理动力学研究至关重要.
- 现有的埃纳拉普利提取和分析方法可能耗时,需要大量样本,或缺乏环境可持续性.
- 开发快速,敏感和环保的分析技术是必要的,以有效量化enalapril.
研究的目的:
- 开发和优化小型化,自组装的管管尖固体相提取 (SPE) 方法,从尿液中提取埃纳拉普利.
- 为了将开发的SPE方法与毛细电泳二极管阵列检测 (CE-DAD) 结合起来,以快速和灵敏地确定埃纳拉普利.
- 评估开发的分析方法的绿色性和可重复使用性.
主要方法:
- 迷你化自组装管道尖 SPE 使用限制访问的 mesoporous polypyrrole 吸附剂.
- 毛细管电泳与二极管阵列检测 (CE-DAD) 使用酸盐缓冲器,高压和特定的注射参数.
- 优化SPE参数,包括样本体积,pH值,吸附剂量,洗溶剂和剂.
主要成果:
- 开发的CE-DAD方法实现了6.3分钟的迁移时间,具有良好的峰值形状和最低基线噪声.
- 在优化的SPE条件下,埃纳拉普利尔的回收率约为74%,线性在100-3000 ng mL-1范围内.
- 该方法显示了低检测极限 (30 ng mL-1) 和定量 (50 ng mL-1),有效的蛋白质去除 (87%) 和吸附剂可在三个周期内重复使用.
- 该分析方法在志愿者尿样中成功验证,并对其环保性进行了评估.
结论:
- 迷你型管管尖SPE与CE-DAD相结合,提供了一种快速,灵敏和选择性的方法,用于尿液中确定埃纳拉普利.
- 开发的技术表现出良好的回收,线性和准确性,使其适合于药物分析中的实际应用.
- 该方法的可重复使用性和对其绿色的积极评估突出了其作为环保意识的分析工具的潜力.
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