Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-6-2
pubmed:abstractText
We report the negative ion chemical ionization mass spectra of 2,4-dinitrophenyl (DNP) amino acid methyl esters. For the common amino acids, these derivatives exhibit very simple mass spectra; the molecular anion is the base peak in all cases. The electrophilicity of the DNP group allows selective and sensitive ionization. Amino acids can be identified singly or in mixtures by their molecular weights, and picomole detection is possible. Chromatography is only needed for Leu/Ile differentiation. Amino-terminal analysis of proteins is demonstrated.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0003-2697
pubmed:author
pubmed:issnType
Print
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
372-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Negative ion chemical ionization mass spectrometry of 2,4-dinitrophenyl amino acid esters.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.