ISO 19563:2017

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

OVERVIEW

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.

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 2017
No. of Pages 13
ICS Classification 67.140.10 Tea
Committee ISO/TC 34/SC 8
Available for Purchase For sale in Singapore only
Adoption ISO