Effective methods for the measurement of CsI cluster ions using MALDI-MS with suitable solvent combinations and additives
Effective methods for the measurement of CsI cluster ions using MALDI-MS with suitable solvent combinations and additives
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DOI：
10.1002/jms.3446
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发表时间：
2014-11-01
影响因子：
2.3
通讯作者：
Mochizuki, Shunsuke
中科院分区：
文献类型：
--
作者：
Mochizuki, Shunsuke
使用 2-[(2E)-3-(4-叔丁基苯基)-2-甲基丙-2-烯基]丙二腈开发了一种在基质辅助激光解吸/电离质谱 (MALDI-MS) 中测量 CsI 样品中 CsI 簇离子 ((CsI)(n)Cs+、(CsI)(n)I-) 的方法 (DCTB) 基质和添加剂。 CsI 和 DCTB 溶液可混溶的溶剂组合可有效检测质量范围超过 m/z 2000 的 CsI 簇离子，并且与 CsI/DCTB 混合物中 DCTB 的特征扩散相关。在 CsI/DCTB 混合物中添加糖类或糖醇改善了 DCTB 分布，并将线性模式下 CsI 簇离子的质量分布拓宽至 m/z 10000。版权所有 (c) 2014 约翰·威利父子有限公司
A method to measure CsI cluster ions ((CsI)(n)Cs+, (CsI)(n)I-) from CsI samples in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) was developed with a 2-[(2E)-3-(4-tert-butylphenyl)-2-methylprop-2-enylidene] malononitrile (DCTB) matrix and additives. Solvent combinations in which the CsI and DCTB solutions were miscible were effective in detecting CsI cluster ions at a mass range of over m/z 2000 and are associated with a characteristic spread of DCTB within the CsI/DCTB mixture. The addition of saccharides or sugar alcohols to the CsI/DCTB mixture improved the DCTB distribution and widened the mass distribution of CsI cluster ions up to m/z 10000 in the linear mode. Copyright (c) 2014 John Wiley & Sons, Ltd.