403130 Determination of Caffeine in Cola Drinks and Other Beverages by Reversed-Phase HPTLC

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Determination of Caffeine in Cola Drinks and Other Beverages by Reversed-Phase HPTLC

Summary

Type: TLC
Application #: 403130
Catalog#: 2715137 - C18-W Silica TLC Plates, w/UV254, glass backed, 250um, 10x20cm 50/pk
Detection: TLC densitometer Scanner II, UV, 254 nm
Conditions: Eluents: water / acetonitrile (80:20, v/v) Migration distance: 29.4 0.4 mm Running time: 25 min.
Authors: Kusch, P.; Knupp, G.
Source: Chem. Educator 2003, 8, 1-5


Details


Legend: Aqueous solutions (10 L) containing 0 mg L-1 (1), 50 mg L-1 (2), 100 mg L-1 (3), 125 mg L-1 (4) and 250 mg L-1 (5) caffeine anhydrous purum as well a Coca-Cola sample (6), previously degassed by sonic