ISO 18447:2021 茶叶 红茶中茶黄素的测定 高效液相色谱法

标准编号：ISO 18447:2021

中文名称：茶叶 红茶中茶黄素的测定 高效液相色谱法

英文名称：Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography

发布日期：2021-06

标准范围

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.

标准预览图