Tea and instant tea in solid form. Determination of caffeine content. Method using high-performance liquid chromatography Ingestion-build-242630 for example the bond between

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Tea and instant tea in solid form. Determination of caffeine content. Method using high-performance liquid chromatography Ingestion-build-242630 for example the bond between1 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.