Quantitative NMR for Content Assignment of Phytochemical Reference Standards

Reference Standards For reference standards used as primary standards for pharmaceutical quality control, stability testing and inprocess control of herbal medicinal products and respective starting materials a dossier together with a certificate of analysis must be available. In this dossier information on identity testing (e.g. by NMR, MS, IR, UV), purity testing (e.g. water content, residual solvents, inorganic impurities) and the assigned content of the reference standard must be provided.