Au@SiO2 core–shell nanoparticles for laser desorption/ionization time of flight mass spectrometry
文献信息
发布日期
2012-03-13
DOI
10.1039/C2AN35074B
影响因子
4.616
作者
Xiaoqing Zhu, Lianglan Wu, Divyesh C. Mungra, Sijing Xia, Jin Zhu
查看原文
摘要
In matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS), the analysis capability, especially for small molecules, is often compromised by the addition of organic matrices due to the existence of background signals. Herein we report a new detection method on the utility of core–shell nanoparticles (CSNPs) as energy transfer structure in LDI-TOF-MS. The LDI-TOF-MS based on gold–silica core–shell nanoparticles with ultrathin silica shell of 2–4 nm (Au@utSiO2 CSNPs) was effectively applied to the analysis of many compounds, especially for small functional molecules and polymers, which was more promising than MALDI-TOF-MS.
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Analyst
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自引率:
5.6%
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