ISO 19563:2017

Determination of theanine in tea and instant tea in solid form using high-performance liquid chromatography

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.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

67.140.10

Statut:

Publié

Date de Publication:

2017-01-09

Numéro Standard:

ISO 19563:2017