MadSci Network: Chemistry

Re: How can I test the amount of caffine a substance has?

Date: Mon Apr 24 17:36:10 2000
Posted By: Gil Stoewsand, Faculty, Food Science & Technology, Cornell University
Area of science: Chemistry
ID: 955660575.Ch

 The analysis of caffeine in coffee, soda, etc. is
quite complex due to the interference of other alkaloids present,  and a
variety of degradations products. The latest method is by isocratic high
performance liquid chromatography, used with standands, seems to be very
good. Reference: Barbas, C., Garcia, A.,Saavedra, L, and Castro, M. J.
Chromatography A, 870 (1+2), 2000, pp.97-103.

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