Aluminium content in tea leaves and in differently prepared tea infusions.

Aluminium content of tea leaves has been engaging the attention during recent years because of
its uptake in the form of beverages such as tea. Hence, data were generated on the Al content in tea
and its infusions, using an inductively coupled plasma spectrometer. The average values of Al in fresh
tea leaves and commercial tea powders were 250 and 325 pg/g dry wt., respectively. Tea infusions
contained 20-80 pg/l of Al. Al complexes with tea components like tannic acid and theoflavins were
studied and stability characteristics as well as the nature of the complexes were computed.