Codes et normes - Achat
ISO 19563:2017
Determination of theanine in tea and instant tea in solid form using high-performance liquid chromatography
SKU: iso_065341_162014
Publié par ISO
Année de publication 2017
1 Edition
13 pages
détails du produit
ISO 19563:2016 specifies a high-performance liquid chromatographic (HPLC) method for the determination of theanine content in tea (Camellia sinensis). It is applicable to both tea and instant tea samples. Separation of L- and D-theanine is not possible using this method; however, the L-enantiomer is the major form in tea.