A model for solvated ion emission from electrospray droplets
A model for solvated ion emission from electrospray droplets
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DOI：
10.1002/rcm.4738
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发表时间：
2010-11-01
影响因子：
2
通讯作者：
Labowsky, M.
中科院分区：
文献类型：
--
作者：
Labowsky, M.
提出了一个模型，该模型表明，从电喷雾液滴中发射小的单电荷和大的多电荷（蛋白质）溶剂化离子所需的能量可以大大低于早期模型预测的能量。通过允许液滴表面在对出现的离子的反应中扭曲，出现了离子发射机制的更微妙的图片，其覆盖了从小离子的纯离子蒸发（PIE）到可以被称为激活的伪瑞利离子释放（PRIR）的范围，对于大离子，该机制产生与电荷残留模型（CRM）几乎不可区分的电荷状态。基于该模型的预测与许多实验观察到的趋势定性一致。版权所有（C）2010约翰威利父子有限公司
A model is presented which shows that the energy'required to emit small singly charged and large multiply charged (protein) solvated ions from electrospray droplets can be considerably lower than those predicted by earlier models. By allowing the droplet surface to distort in reaction to the emerging ion, a more nuanced picture of the ion emission mechanism appears, one that covers the range from pure ion evaporation (PIE) for small ions to what may be termed activated pseudo-Rayleigh ion release (PRIR), a mechanism that yields charge states nearly indistinguishable from the charge residue model (CRM), for large ions. Predictions based on this model are qualitatively consistent with many experimentally observed trends. Copyright (C) 2010 John Wiley & Sons, Ltd.