ISO 19563:2017
International Standard
Current Edition
·
Approved on
10 January 2017
Determination of theanine in tea and instant tea in solid form using high-performance liquid chromatography
ISO 19563:2017 Files
English
13 Pages
Current Edition
43.82 OMR
ISO 19563:2017 Scope
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.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 150-1:2013
Omani Standard
Expiration dates for food products -Part 1 : Mandatory expiration dates
GSO 150-1:2013
Gulf Technical Regulation
Expiration dates for food products -Part 1 : Mandatory expiration dates
Recently Published
GSO 8:2024
Gulf Standard
TITLE IN ENGLISH
GSO ASTM D2532:2024
ASTM D2532:22
Gulf Standard
TITLE IN ENGLISH
GSO 11212:2024
Gulf Standard
TITLE IN ENGLISH
GSO ISO 349:2024
ISO 349:2020
Gulf Standard
Protective clothing — Protection against chemicals — Determination of resistance of protective clothing materials to permeation by liquids and gases
