GSO ISO 18447:2023
Gulf Standard
Current Edition
·
Approved on
03 May 2023
·
Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography
GSO ISO 18447:2023 Files
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0 Pages
Current Edition
Reference Language
GSO ISO 18447:2023 Scope
This document specifies a high performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) method for the determination of content of the four major theaflavins of tea.
It is applicable to both leaf and instant black and oolong teas. The method is currently not validated for ready-to-drink (RTD) beverages.
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