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Chemistry
液相色谱串联质谱法在天然产物研究中的应用:以莨菪烷生物碱为例
液相色谱串联质谱法在天然产物研究中的应用:以莨菪烷生物碱为例
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JoVE Journal Chemistry
Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study

液相色谱串联质谱法在天然产物研究中的应用:以莨菪烷生物碱为例

Full Text
1,488 Views
09:36 min
March 8, 2024

DOI: 10.3791/66620-v

Maris A. Cinelli1, Jill Cline1, Tyler Watson1

1Department of Chemistry,Northern Michigan University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

我们提出了一种基于快速质谱 (MS)/质谱 (MS) 的莨菪烷生物碱注释和分类方法,可用于含莨菨烷样品的初步去复制和发现用于分离的新型生物碱。

我们研究的最简单的形式是,我们试图在植物中发现新的分子。植物的化学性质很复杂,其中一些化学物质可能具有药用价值。我们对寻找新的生物碱特别感兴趣,这些生物碱是某些含有氮的分子。

最近,我们有许多新的不同生物碱仪器和技术可用,因此人们每天都会发现越来越多的新分子。借助这些仪器,我们可以回答诸如存在哪些化学物质、何时存在以及可以在植物的哪个部分找到它们等问题?质谱法作为一种分析技术,在过去 50 年中确实得到了改进。

仪器功能更强大、成本更低、分辨率更高。这些技术不仅使我们能够识别更多的植物分子,如生物碱,而且我们的鉴定更加确定。这种方法快速且灵敏。

我们能够在 60 到 90 分钟内收集到含有许多莨菪烷生物碱的茄属植物的全套数据,并将拟议的结构分配给即使这些生物碱含量较低。我们对为其他类别的生物碱开发基于串联质谱的过滤方法非常感兴趣,并使用此类方法来研究不同物种、不同植物部分和不同生长阶段之间的植物化学成分有何差异。

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关键词:液相色谱-串联质谱 LC-MS/MS 天然产物 莨菪烷生物碱 曼陀罗 去重复 数据依赖性分析 母离子扫描 中性丢失扫描

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