Iodimetric Determination of Caffeine

The application note describes the potentiometric determination of caffeine by iodometry using combined platinum ring redox sensor. 

Background

Caffeine is an alkaloid belonging to the class of methylxanthines and is a widely used central nervous system (CNS) stimulant that reduces fatigue and drowsiness.

The most well-known sources for caffeine are the coffee beans, tea leaves and kola nuts. Caffeine is added to many popular soft drinks, and is also a component of a number of pharmacological preparations and over-the-counter medicines including analgesics, diet-aids, and cold/flu remedies. Along with its benefits, caffeine also has some negative effects on human system. Therefore, monitoring caffeine content in drinks or drugs is utmost important.

This method was developed using an automated Titration Excellence titrator to determine the exact amount of caffeine in both food and pharmaceutical samples. 

This application note includes:

• Introduction
• Sample Preparation and Procedures
• Chemistry
• Instruments and Accessories
• Method in Detail
• Results and Remarks

And method files ( .lmt and .xml) for direct import and implementation on the instrument