Alizarin (anthraquinone/hydroxyanthracene) assay

Alizarin is a natural pigment of plant origin, belonging to the anthraquinone family. It is historically extracted from madder (Rubia tinctorum) and is now also analyzed for its antioxidant effects or as an authenticity tracer.
The dosage of alizarin (anthraquinone/hydroxyanthracene) is relevant in colored plant extracts or traditional products.
Analyzed matrices: madder extracts, plant dyes, powders, supplements.
Analytical techniques: HPLC-DAD, LC-MS, colorimetric methods.

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