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Homepage>ISO Standards>ISO 14502-2:2005-Determination of substances characteristic of green and black tea-Part 2: Content of catechins in green tea — Method using high-performance liquid chromatography
download between 0-24 hoursReleased: 2005
ISO 14502-2:2005-Determination of substances characteristic of green and black tea-Part 2: Content of catechins in green tea — Method using high-performance liquid chromatography

ISO 14502-2:2005

ISO 14502-2:2005-Determination of substances characteristic of green and black tea-Part 2: Content of catechins in green tea — Method using high-performance liquid chromatography

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Standard´s number:ISO 14502-2:2005
Pages:23
Edition:1
Released:2005
Language:English
DESCRIPTION

ISO 14502-2:2005


ISO 14502-2:2005 specifies a high-performance liquid chromatographic (HPLC) method for the determination of the total catechin content of tea from the summation of the individual catechins. It is applicable to both leaf and instant green tea, and with precision limitations to black tea. Gallic acid and caffeine can also be determined by this method, as can theogallin and theaflavins.
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