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Original Articles

Simultaneous Determination of Theobromine and Caffeine in Cocoa by Partial Least-Squares Multivariate Spectrophotometric Calibration

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Pages 859-866 | Received 03 Sep 1997, Accepted 10 Dec 1997, Published online: 22 Aug 2006
 

Abstract

The use of partial least - squares multivariate spectrophotometric calibration for the simultaneous determination of theobromine and caffeine in cocoa is presented. The results show that these components in a molar ratio of about 6 : 1 in cocoa have been determined simultaneously with standard deviations of about 0.05 and 0.02 for theobromine and caffeine, respectively.

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