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Normas DIN – AENOR
DIN ISO 14502-2:2007-12

DIN ISO 14502-2:2007-12

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 + Corrigendum 1:2006)

Détermination des substances caractéristiques du thé vert et du thé noir - Partie 2: Dosage des catechins dans le thé vert - Méthode par chromatographie en phase liquide à haute performance (ISO 14502-2:2005 + Corrigendum 1:2006)

Bestimmung von charakteristischen Substanzen von grünem und schwarzem Tee - Teil 2: Gehalt an Catechinen in grünem Tee - Verfahren mit Hochleistungs-Flüssigchromatographie (ISO 14502-2:2005 + Corrigendum 1:2006)

Fecha:
2017-12 /Active
Equivalencias internacionales:

BVL L 47.00-11 (2008-12)

ISO 14502-2 Technical Corrigendum 1 (2006-04)

ISO 14502-2 (2005-03)

Relación con otras normas DIN:
Resumen:
This standard describes a high performance liquid chromatographic method for the determination of total catechin content of green tea. It is applicable to both leaf and instant green tea. Gallic acid and caffeine can also be determined by this method, as can theogallin and theaflavines.
Keywords:
Agricultural products, Analysis, Catechol, Chemical analysis and testing, Chromatography, Determination of content, Food products, High performance liquid chromatography, HPLC, Liquid chromatography, Sampling methods, Substances, Tea, Test reports, Testing
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