Enhanced MALDI MS sensitivity by weak base additives and glycerol sample coating.

Enhanced MALDI MS sensitivity by weak base additives and glycerol sample coating.
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通过弱碱添加剂和甘油样品涂层增强 MALDI MS 灵敏度

DOI:
10.1021/ac403228d
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发表时间:
2014
影响因子:
7.4
通讯作者:
Jaskolla
Jaskolla
中科院分区:
化学1区
文献类型:
--
作者:
Cramer;Jaskolla

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合理设计MALDI矩阵的概念已扩展到下一个“全样本”水平。这些研究揭示了一些意想不到的和可利用的见解,在提高MALDI敏感性。结果表明:(i)最好避免仅提供额外激光能量吸收的添加剂;(ii)添加质子化弱碱形式的质子供体可能非常有益;(iii)强烈推荐添加甘油用于涂覆结晶样品。总体而言,分析灵敏度已显着增加相比,目前的“金”标准,在MALDI MS,和新的见解的机制和过程中,MALDI已经获得。
The concept of rationally designing MALDI matrices has been extended to the next “whole sample” level. These studies have revealed some unexpected and exploitable insights in improving MALDI sensitivity. It is shown that (i) additives which only provide additional laser energy absorption are best to be avoided; (ii) the addition of proton donors in the form of protonated weak bases can be highly beneficial; (iii) the addition of glycerol for coating crystalline samples is highly recommended. Overall, analytical sensitivity has been significantly increased compared to the current “gold” standards in MALDI MS, and new insights into the mechanisms and processes of MALDI have been gained.
DOI: 10.1002/anie.201208628
发表时间: 2013-02-18
影响因子: 16.6
作者:
Cramer, Rainer;Pirkl, Alexander;Hillenkamp, Franz;Dreisewerd, Klaus
通讯作者: Dreisewerd, Klaus
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DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
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通讯作者: K. Bowen
DOI: 10.1016/j.jasms.2008.12.028
发表时间: 2009-05-01
影响因子: 3.2
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发表时间: 2012-08-07
影响因子: 7.4
作者:
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