Fig. 4From: Glycosaminoglycans from Co-Products of «Scyliorhinus canicula»: Extraction and Purification in Reference to the European Pharmacopoeia RequirementCetylpyridinium chloride (CPC) titration of extracted chondroïtin sulphate and (USP) grade chondroïtin sulfate. a CS (USP grade) titration with CPC. b CS titration of fraction I with CPC. c CS titration of fraction II with CPC. d CS titration of fraction III with CPCBack to article page