Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1976-5-25
pubmed:abstractText
The electronic absorption spectra of individual ionic forms of pyridoxal phosphate and of a series of related aldehydes have been evaluated together with pKa values. Spectral resolution with lognormal curves has permitted the quantitative description of equilibria for hydration and tautomerization. Precise values of peak positions for both aldehyde and hydrate forms have been obtained. Measurements of temperature-induced changes in the spectra have provided additional information. Knowing the hydration ratios and stepwide acid dissociation constants, it is possible to evaluate microscopic acid dissociation constants for both the aldehyde and hydrate forms of the compounds.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
421
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
181-94
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Band-shape analysis and resolution of electronic spectra of pyridoxal phosphate and other 3-hydroxypyridine-4-aldehydes.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.