期刊
CHEMICAL PHYSICS LETTERS
卷 546, 期 -, 页码 159-163出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2012.07.050
关键词
-
资金
- MEXT [477]
- JSPS [24550030]
- Grants-in-Aid for Scientific Research [24550030] Funding Source: KAKEN
An efficient matrix for matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) has been developed. The use of 2,4,6-trihydroxyacetophenone (THAP) on lithium-substituted zeolite has enabled ionization of low-molecular-weight compounds that are not detectable by conventional MALDI-MS. IR measurements and quantum-chemical calculations have also been carried out to understand the adsorption structure of THAP on zeolite. The mechanism of Li+ adduction from zeolite to THAP is also discussed. The important role of the water molecules adsorbed on the zeolite surface for the Li+ adduction from zeolite to THAP has been clarified. (C) 2012 Elsevier B.V. All rights reserved.
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