Source:http://linkedlifedata.com/resource/pubmed/id/20178350
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
2010-3-11
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pubmed:abstractText |
Vacuum ultraviolet (VUV) photon-induced ionization and fragmentation of N-methyl glycine (sarcosine) were investigated with infrared laser desorption/tunable synchrotron VUV photoionization mass spectrometry (IR LD/VUV PIMS) and theoretical calculations. Fragment-controllable mass spectra of sarcosine were measured at various photon energies. By tuning the photon energy, the fragments at m/z 44, 45, 43, 42, 30, and 60 were gradually detected. The ionization energy of the precursor was obtained by measuring the photoionization efficiency spectrum. Possible formation pathways of the fragment ions at m/z 44 (CH(3)NHCH(2)(+)), 45 (CH(3)NH(2)CH(2)(+)), 43 (CH(2)NHCH(2)(+)), 42 (CH(2)NCH(2)(+)), 30 (CH(2)NH(2)(+)), and 60 (CH(2)COOH(2)(+)) were discussed in detail with the help of calculations at the G3B3 and B3LYP/6-31++G(d,p) levels.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
1520-5215
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
18
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pubmed:volume |
114
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3411-7
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pubmed:meshHeading |
pubmed-meshheading:20178350-Infrared Rays,
pubmed-meshheading:20178350-Mass Spectrometry,
pubmed-meshheading:20178350-Models, Chemical,
pubmed-meshheading:20178350-Models, Molecular,
pubmed-meshheading:20178350-Molecular Conformation,
pubmed-meshheading:20178350-Photochemical Processes,
pubmed-meshheading:20178350-Sarcosine,
pubmed-meshheading:20178350-Spectrum Analysis,
pubmed-meshheading:20178350-Thermodynamics,
pubmed-meshheading:20178350-Ultraviolet Rays
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pubmed:year |
2010
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pubmed:articleTitle |
Vacuum ultraviolet photofragmentation of sarcosine: photoionization mass spectrometric and theoretical insights.
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pubmed:affiliation |
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, People's Republic of China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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