Analysis

Concern with the physiological effects of caffeine has stimulated research on its analysis in food and biological systems. High-performance liquid chromatographic (hplc) analysis of caffeine in food products requires only the filtration of aqueous extracts and injection onto a suitable column. Detection is frequently based on the measurement of /ív absorption at 280 nm (7). Determination of caffeine at the low concentrations present in body fluids is accomplished by direct injection onto reversed-phase hplc columns (8). Gas chromatographic determination of caffeine in beverages using a flame ionization detector has also been described (9). Capillary electrophoresis has also been used for caffeine determination (10).

The Mediterranean Diet Meltdown

The Mediterranean Diet Meltdown

Looking To Lose Weight But Not Starve Yourself? Revealed! The Secret To Long Life And Good Health Is In The Foods We Eat. Download today To Discover The Reason Why The Mediterranean Diet Will Help You Have Great Health, Enjoy Life And Live Longer.

Get My Free Ebook


Post a comment