@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS010 prodottidellaricerca:prodotto prodotto:ID296997 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA12971 pubblicazioni:autoreCNRDi prodotto:ID296997 . @prefix rdf: . @prefix retescientifica: . prodotto:ID296997 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID296997 rdfs:label "Quantification of deuterium isotopomers of tree-ring cellulose using nuclear magnetic resonance (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID296997 pubblicazioni:anno "2006-01-01T00:00:00+01:00"^^xsd:gYear ; pubblicazioni:doi "10.1021/ac061050a"^^xsd:string . @prefix skos: . prodotto:ID296997 skos:altLabel "
Betson, Tatiana R.; Augusti, Angela; Schleucher, Jurgen (2006)
Quantification of deuterium isotopomers of tree-ring cellulose using nuclear magnetic resonance
in Analytical chemistry (Wash.)
"^^rdf:HTML ; pubblicazioni:autori "Betson, Tatiana R.; Augusti, Angela; Schleucher, Jurgen"^^xsd:string ; pubblicazioni:paginaInizio "8406"^^xsd:string ; pubblicazioni:paginaFine "8411"^^xsd:string ; pubblicazioni:numeroVolume "78"^^xsd:string . @prefix ns10: . prodotto:ID296997 pubblicazioni:rivista ns10:ID386574 ; pubblicazioni:pagineTotali "6"^^xsd:string ; pubblicazioni:numeroFascicolo "24"^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "Umea University"^^xsd:string ; pubblicazioni:titolo "Quantification of deuterium isotopomers of tree-ring cellulose using nuclear magnetic resonance"^^xsd:string ; prodottidellaricerca:abstract "Stable isotopes in tree rings are important tools for reconstruction of past climate. Deuterium ( D) is of particular interest since it may contain climate signals and report on tree physiology. Measurements of the D/H ratio of tree-ring cellulose have proven difficult to interpret, presumably because the D/H ratio of the whole molecule blends the abundances of the seven D isotopomers of cellulose. Here we present a method to measure the abundance of the D isotopomers of tree-ring cellulose by nuclear magnetic resonance spectroscopy (NMR). The method transforms tree-ring cellulose into a glucose derivative that gives highly resolved, quantifiable deuterium NMR spectra. General guidelines for measurement of D isotopomers by NMR are described. The transformation was optimized for yield and did not alter the original D isotopomer abundances, thus, conserving the original signals recorded in wood cellulose. In the tree-ring samples tested, the abundances of D isotopomers varied by approximately (10% (2% standard error). This large variability can only be caused by biochemistry processes and shows that more information is present in D isotopomer abundances, compared to the D/H ratio. Therefore, measurements of the D isotopomer distribution of tree rings may be used to obtain information on long-term adaptations to environmental changes and past climate change."@en ; prodottidellaricerca:prodottoDi istituto:CDS010 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA12971 . ns10:ID386574 pubblicazioni:rivistaDi prodotto:ID296997 .