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High-performance liquid chromatography of blue and purple indigoid natural dyes
Wouters, J.; Verhecken, A. (1991). High-performance liquid chromatography of blue and purple indigoid natural dyes. J. Soc. Dyers Colour. 107(7-8): 266-269. hdl.handle.net/10.1111/j.1478-4408.1991.tb01351.x
In: Journal of the Society of Dyers and Colourists. Wiley: Bradford. ISSN 0037-9859, more
Peer reviewed article  

Available in Authors 
    VLIZ: Open Repository 250781 [ OMA ]

Keywords
    Marine molluscs; Marine

Authors  Top 

Abstract
    Four major components of blue and purple natural dyes of the Indigoid class were separated and spectrally characterised by high-performance liquid chromatography: indigotin, indirubin, 6-monobromoindigotin and 6,6'-dibromoindigotin. It has been shown for the first time that a dyeing with a hypobranchial glandular secretion of Murex trunculus L contains indigotin and both its mono-and di-substituted brominated derivative. The analytical features presented may be used to study the composition of old dyes on yarns.

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