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Comparison of gas chromatographic and spectrophotometric methods of determination for caffeine in coffees and teas

✍ Scribed by Strahl, Nathan R.; Lewis, Henry; Fargen, Rosemarie


Book ID
120347769
Publisher
American Chemical Society
Year
1977
Tongue
English
Weight
393 KB
Volume
25
Category
Article
ISSN
0021-8561

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A method for the determination of caffeine in coffee and tea samples based on the use of supported liquid membranes coupled to a flow system has been developed. The sample may be analysed both as solid and slurry. In the case of solid sample, this is directly placed in the membrane unit, and when th