Tea and caffeine

Caffeine will be extracted from tea and coffee. The substance will be analysed by thin layer chromatography. The purity of the isolated caffeine will be determined by NMR spectroscopy.
The content of tannic acids in tea will be determined by pH measurement.

Recommended: from grade 11 on
Duration: 4 hours to one day


Öffnet internen Link im gleichen FensterApplication