Simultaneous determination of caffeine and theobromine in local area coffee brews
نویسندگان
چکیده
The concentrations of caffeine and theobromine were determined using the method of external standards and high-performance liquid chromatography (HPLC). House brews from Atomic Coffee, Babs, Coffee Stop (Caribou Coffee), Dunn Bros., Concordia’s Maize (Minnesota Mudd and Nicaraguan), Moxie Java, and Starbucks were collected and analyzed. Dunn Bros. reported the highest amount of caffeine per ounce, while the Maize’s Minnesota Mudd showed the lowest concentration. Theobromine concentration was minimal in all samples of coffee.
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