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通过循环离子流动性质谱法分离三糖醇 (TAG) 异构体

Carlo R de Bruin¹, Wouter J C de Bruijn¹, Mirjam A Hemelaar¹

¹Laboratory of Food Chemistry, Department of Agrotechnology and Food Sciences, Wageningen University, Wageningen, the Netherlands.

|September 7, 2024

概括

循环离子流动性质谱法 (cIMS-MS) 能够有效地分离三糖醇 (TAG) 异构体,克服了传统方法的局限性. 这一进步有助于理解不同的TAG异构体如何影响健康和食品特性.

科学领域:

分析化学分析化学
利皮多米克 (Lipidomics) 是一种消化剂.
质谱测量质量谱测量

背景情况:

三糖醇 (TAG) 是主要的脂质,具有多种异构形式.
分离TAG异构体对于理解它们独特的生物和化学性质至关重要.
像LC-MS这样的现有方法在全面的TAG同位素分离方面扎.

研究的目的:

开发和验证循环离子流动性质谱法 (cIMS-MS) 方法,用于分离所有类型的TAG异构体.
调查引证和结构特征对TAG异构体分离的影响.
为了证明该方法在解决复杂的TAG同位素混合物的能力.

主要方法:

使用循环离子流动性质谱 (cIMS-MS) 进行TAG同位素分离和识别.
评估了各种添加物 (Li+,NH4+,Na+,K+) 对分离效率的影响.
分析了结构特征 (不和,链长,配置,双键位置) 对漂移时间的影响.

主要成果:

添加物 (Na+) 在分离所有TAG同位素类型方面表现最佳.
建立了一个明确的结构特征对TAG漂移时间的影响顺序.
成功开发了cIMS-MS策略,以分离含有多达6个TAG异构体的混合物.

结论:

开发的cIMS-MS方法提供了复杂的TAG同位素混合物的有效分离.
这种技术对于分析其他脂类如二和单糖醇具有显著的潜力.
对于涉及真实世界TAG样本的应用,cIMS-MS是一个有前途的工具.

关键词:

吸管形成的形成.异构体脂质是一种异构体脂质.空间电荷效应的影响三甲酸甘油三甲酸甘油是什么通过cIMS-MS进行分析.

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