Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/15589
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Title

Fingerprinting of Cretaceous higher plant resins by infrared spectroscopy and gas chromatography coupled to mass spectrometry

AuthorsChaler, Roser CSIC; Grimalt, Joan O. CSIC ORCID
KeywordsIR
GC-MS
Terpenoid
Sesquiterpenoid
Fossil resin
Amber
Resinite
Peñacerrada deposit
Issue Date1-Sep-2005
PublisherJohn Wiley & Sons
CitationPhytochemical Analysis 16(6): 446-450 (2005)
AbstractAmbers from Peñacerrada (Basque Country, North Spain) have been analysed by IR spectroscopy and GC-MS in order to study the polymeric and solvent-soluble GC-amenable fractions, respectively. All samples showed branched monoalkybenzenes, bicyclic sesquiterpenoids and tricyclic diterpenoids related to pimaric acids precursors, suggesting a paleobotanic origin from araucarian species. Molecules containing oxygenated polar functionalities were not found, which is in agreement with the Cretaceous origin of the samples and in good correspondence with the IR spectra and with the low oxygen content estimated from elemental composition analysis. In addition, no IR bands for exocyclic double bonds and very few GC-amenable monounsaturated molecules were found, which provides further evidence of the loss of olefinic groups. Theses features show that the age-dependent loss of oxygenated and olefinic functions is a general process affecting the whole amber structure, not only the solvent soluble fraction.
Description5 pages, 1 figure, 2 tables.-- PMID: 16315489 [PubMed].-- Printed version published Nov 2005.
Publisher version (URL)http://dx.doi.org/10.1002/pca.868
URIhttp://hdl.handle.net/10261/15589
DOI10.1002/pca.868
ISSN0958-0344
E-ISSN1099-1565
Appears in Collections:(IDAEA) Artículos

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