In this lab, students will determine the amount of caffeine in a beverage. Students will determine the retention time of ... Samples have to be filtered before making the injection. This will remove ...

We’re guessing he needed another use for his supercritical drying chamber, so after looking over a few patents, he decided to make pure caffeine in his garage. The extraction began with green ...

In this laboratory, students will see how to isolate caffeine from a cup of coffee and use spectroscopy to measure the amount of caffeine present. This lab was created by the Ren Research group at ...

Consumer and scientific groups have for years urged the Food and Drug Administration to make companies disclose caffeine levels, but the agency says it lacks the authority. Bottom line.