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Titolo:
A preliminary investigation of the application of differential scanning calorimetry to the study of collagen degradation in archaeological bone
Autore:
Nielsen-Marsh, CM; Hedges, REM; Mann, T; Collins, MJ;
Indirizzi:
Univ Newcastle Upon Tyne, Postgrad Inst, NRG, Newcastle Upon Tyne NE1 7RU,Tyne & Wear, England Univ Newcastle Upon Tyne Newcastle Upon Tyne Tyne & Wear England NE1 7RU Univ Oxford, Archaeol & Hist Art Res Lab, Oxford OX1 3QJ, England Univ Oxford Oxford England OX1 3QJ Art Res Lab, Oxford OX1 3QJ, England Perkin Elmer Thermal & Elemental Anal, Beaconsfield HP9 2GB, Bucks, England Perkin Elmer Thermal & Elemental Anal Beaconsfield Bucks England HP9 2GB
Titolo Testata:
THERMOCHIMICA ACTA
fascicolo: 1-2, volume: 365, anno: 2000,
pagine: 129 - 139
SICI:
0040-6031(200012)365:1-2<129:APIOTA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMAL STABILIZATION; FIBERS; SITES;
Keywords:
DSC; archaeological bone; collagen; diagenesis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Collins, MJ Univ Newcastle Upon Tyne, Postgrad Inst, NRG, Drummond Bldg, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England Univ Newcastle Upon Tyne Drummond Bldg Newcastle Upon Tyne Tyne & Wear England NE1 7RU
Citazione:
C.M. Nielsen-Marsh et al., "A preliminary investigation of the application of differential scanning calorimetry to the study of collagen degradation in archaeological bone", THERMOC ACT, 365(1-2), 2000, pp. 129-139

Abstract

The study investigated the potential application of differential scanning calorimetry (DSC) to archaeological bone collagen deterioration. The thermal transition of collagen was compared with the preservation state of the bones. Methods of sample preparation were shown to have a significant effect upon the ability to extract reproducible, reliable thermal data from the collagen. Three main protocols were examined, but the optimal method of collagen extraction (10%, w/v ethyldiamine tetraacetic acid demineralisation of bone shards) was slow, reducing the overall utility of DSC for archaeology. Comparison of the T-max (the maximum temperature of thermal transition) with the diagenetic state of the bone revealed no correlation with histological deterioration or alterations to the bone mineral or organic components. A correlation was observed, however, in young bone samples between T-max and age. This correlation was improved when thermal age, a parameter that integrates thermal history with the temperature dependence of collagen gelatinisation, was used. In thermally older bones T-max displayed little variation. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 00:13:02