Tea and instant tea in solid form. Determination of caffeine content. Method using high-performance liquid chromatography Ingestion-build-73073 such as bolts

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Tea and instant tea in solid form. Determination of caffeine content. Method using high-performance liquid chromatography Ingestion-build-73073 such as bolts1 Scope This International Standard specifies a method for the determination by high performance liquid chromatography (HPLC) of the caffeine content of teas and instant teas. It is applicable to green tea, black tea and decaffeinated tea products.