DETERMINATION OF ALUMINUM IN WINES BY DIRECT GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY

A simple method for direct routine determination of aluminum in wine b y graphite furnace atomic absorption spectrometry is described. This p rocedure allows good sensitivity by inclusion of a cool-down step befo re atomization. The detection limit obtained with a single-beam appara tus was 1.5 mu g/L. Recoveries of aluminum in red, white, and fortifie d wines ranged from 91.7 to 109.5%. Aluminum was determined in 98 red table wines from the south of France. The mean aluminum content was 0. 763 mg/L (range, 0.25-2.55 mg/L). In addition, the ability of the wine to dissolve the aluminum in the crown cap was shown.