Ionization Mechanism in Surface Plasmon Enhanced Laser Desorption/Ionization
| Autor: | Keishiro Nagoshi, Kazuhiro Sakata, Takashi Korenaga, Kohei Shibamoto |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Matrix-assisted laser desorption electrospray ionization
Chemistry Analytical chemistry Thermal ionization Bioengineering Surfaces and Interfaces Condensed Matter Physics Ion source Soft laser desorption Surfaces Coatings and Films Atmospheric-pressure laser ionization Mechanics of Materials Field desorption Ionization Biotechnology Ambient ionization |
| Zdroj: | e-Journal of Surface Science and Nanotechnology. 7:93-96 |
| ISSN: | 1348-0391 |
| DOI: | 10.1380/ejssnt.2009.93 |
| Popis: | We researched contribution of a charge transfer (CT) effect to desorption/ionization mechanism in our ultra-high sensitive laser desorption/ionization mass spectrometry based on surface plasmon (SP) excitation (SPLDI-MS). A quantity of CT electrons between a metal surface and sample molecules estimated from Raman measurement is correlated to a mass signal intensity of sample molecule in our SPLDI-MS method. A sample system with a larger quantity of CT electrons gave a higher mass signal intensity. Efficient use of the CT effect would lead to development of a higher sensitive SPLDI-MS and this development would contribute to advancement of various fields. [DOI: 10.1380/ejssnt.2009.93] |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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