V2EX electrospray ionization

Electrospray Ionization

定义 Definition

电喷雾电离(ESI):一种常用的软电离质谱电离技术。它将溶液在高电压作用下雾化成带电微滴,微滴在溶剂蒸发与库仑裂解过程中生成气相离子,特别适合分析蛋白质、肽类、核酸等大分子与极性化合物。(该术语在更广语境下也可泛指电喷雾产生离子的过程。)

发音 Pronunciation (IPA)

/lktrospre anazen/

例句 Examples

Electrospray ionization is widely used in mass spectrometry.
电喷雾电离被广泛用于质谱分析。

Using electrospray ionization, the lab detected multiple charge states of the protein and confirmed its molecular mass.
通过电喷雾电离,实验室检测到了该蛋白的多种带电态,并确认了其分子量。

词源 Etymology

electro- 表示“电的”,spray 表示“喷雾/喷射”,ionization 表示“电离”。合起来字面意思就是“用电把溶液喷成雾并使其电离”,对应其工作原理:高电压使液体形成带电喷雾,最终产生离子供质谱检测。

相关词 Related Words

文献作品 Literary / Notable Works

  • J. B. Fenn et al., “Electrospray Ionization for Mass Spectrometry of Large Biomolecules,” Science(1989)
  • Edmond de Hoffmann & Vincent Stroobant, Mass Spectrometry: Principles and Applications(教材/专著中系统讲解 ESI)
  • J. H. Gross, Mass Spectrometry: A Textbook(质谱教材章节中频繁出现该术语)
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