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NTC-ISO 20481-2010 high performance liquid chromatography

Coffee and coffee products. Determination of the caffeine content using high performance liquid chromatography (hplc). Reference method: This standard specifies a high performance liquid chromatography (HPLC) method for the determination of caffeine content in green coffee, roasted coffee, soluble coffee, whether non-decaffeinated (regular) or decaffeinated; and instant blends of coffee products (for example, coffee/chicory blend, or cappuccino type coffee beverage).    

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Norma Técnica