Noninvasive characterization and quantification of anthraquinones in dyed woolen threads by visible diffuse reflectance spectroscopy
Resource type
Journal article
Date published
May 18, 2022
Abstract
The anthraquinone components of the roots of various species of madder (like Rubia tinctorum L. and Rubia peregrina L.) have been used for millennia as red colorants in textiles, carpets, tapestries, and other objects. To understand the selection and preparation of dyestuffs in various cultures and historical periods, these dyes (mainly alizarin and purpurin) are traditionally analyzed by means of separation methods that require sampling. This contribution focuses on establishing a fast, noninvasive, and in situ analytical procedure based on visible reflectance spectroscopy for the characterization and quantification of anthraquinones in ancient wool yarns. The method was successfully applied to Coptic textiles, and the analytical results are in agreement with prior observations obtained on samples by separation techniques.
Funder
| Funder name | Awards |
Centre National de la Recherche Scientifique | |
Journal title
Analytical Chemistry
Volume
94
Issue
21
Publisher
American Chemical Society (ACS)
ISSN
0003-2700
eISSN
1520-6882
Official URL
Rights statement
In Copyright