Ferreira, Ester S B, Quye, Anita, McNab, Hamish, Hulme, A N, Wouters, J and Boon, J J (1999) The analytical characterisation of flavonoid photodegradation products: a novel approach to identifying natural yellow dyes in ancient textiles. In: Triennial meeting (12th), Lyon, 29 August - 1996: preprints. James & James (Science Publishers) Ltd, London, pp. 221-227. ISBN 9781873936924

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In a previous study new compounds were detected from light aged natural yellow (flavonoid) dyes on alum mordanted wool. We have now developed a novel technique - negative ion electrospray ionisation quadrupole ion trap tandem mass spectrometry (ESI QIT MS) - for futher study and identification of characteristic flavonoid photodegradation products in light aged historical textiles. The comparison between atmospheric pressure chemical ionisation (APCI) and electrospray ionisation (ESI) both in negative and positive ion mode showed that negative ion electrospray ionisation is the better ionisation method for the analysis of flavones and flavonols, specifically apigenin, quercetin, kaempferol, morin, fisetin and luteolin. Furthermore, the analysis of acid-hydrolysis extracts from dyed wool by negative ion electrospray mass spectrometry (ESI MS) provided complementary data to those obtained by photodiode array high performance liquid chromatography (PDA-HPLC). The study of flavonoids by negative ion ESI QT MS showed fingerprint patterns of breakdown peaks specific to each flavonoid. An example of the analysis of these breakdown patterns to provide structural information is also discussed

Item Type: Book Section
Additional Information: Full text available via https://www.researchgate.net/publication/236217081_The_Analytical_Characterisation_of_Flavonoid_Photodegradation_Products_A_Novel_Approach_to_Identifying_Natural_Yellow_Dyes_in_Ancient_Textiles
Uncontrolled Keywords: flavanoid, textile, photodegredation, photodiode array high performance, liquid chromatography (PDA HPLC), negative ion electrospray, ionisation, quadruple ion trap tandem mass spectrometry (ESI QIT MS)
Subjects: A General Works > AC Collections. Series. Collected works
A General Works > AM Museums (General). Collectors and collecting (General)
Q Science > QD Chemistry
Theme: Material culture: creation and use
Department: Conservation and Analytical Research
Related URLs:
Depositing User: Ross Anderson
Date Deposited: 21 Mar 2019 16:58
Last Modified: 21 Mar 2019 16:58
URI: http://repository.nms.ac.uk/id/eprint/2253

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