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Book chapter
The analytical characterisation of flavonoid photodegradation products: a novel approach to identifying natural yellow dyes in ancient textiles
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... -
Book chapter
A preliminary study of light-ageing effects on the analysis of natural flavonoid-dyed wools by PDA HPLC and by DTMS
Initial results from high performance liquid chromatographic (HPLC) analysis of accelerated fluorescent tube- and mercury-incandescent lamp-aged mordanted wools dyed with old fustic, weld, quercitron bark, quercetin, dyer's greenweed and onion skins indicate that additional chromophoric and non-chromophoric compounds are generated upon photodegredation. Greater amounts of these componenets were generated after... -
Book chapter
Development of analytical techniques for the study of natural yellow dyes in historic textiles
Interest in all aspects of dyestuffs has grown considerably since an informal meeting of researchers twenty years ago developed into the annual meetings of Dyes in History and Archaeology, with the journal of the same name publishing a selection of papers presented. Analysis has revealed that the early 20th-century clothing...Ferreira, Ester S B ; Quye, Anita ; McNab, Hamish ; Wouters, J ; Boon, J J …