Selective determination of aluminum bound with tannin in tea infusion

Erdemoglu S., Gucer S.

ANALYTICAL SCIENCES, vol.21, no.8, pp.1005-1008, 2005 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 8
  • Publication Date: 2005
  • Doi Number: 10.2116/analsci.21.1005
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1005-1008
  • Bursa Uludag University Affiliated: No


In this study, an analytical method for indirect measurement of Al bound with tannin in tea infusion was studied. This method utilizes the ability of the tannins to precipitate with protein. Separation conditions were investigated using model solutions. This method is uncomplicated, inexpensive and suitable for real samples. About 34% of the total Al in brew extracted from commercially available teas was bound to condensed and hydrolyzable tannins.