Cyclic Voltammetric Investigation of Caffeine at Anthraquinone Modified Carbon Paste Electrode

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Introduction Caffeine (systematic name is 1,3,7-trimethylxanthine or 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione) which is produced in many plants such as coffee beans, tea, cacao beans. On one hand, it is widely used all over the world not only in the human’s dietary such as tea, coffee and chocolate but also can be the pesticides which can be deadly to the insects. On the other hand, caffeine can also harm human’s health in several aspects such as the central nervous system, which is the most common one, the heart rate and the respiration. However, caffeine can also make people feel excited, focus on one thing easily, and have clearly thoughts. For adults, people can have no more than 250 mg caffeine per day. If people who take more than 13-19 grams caffeine per day may be cause to death finally. There has a wide range of analyse approaches to analysis caffeine’s application such as Nuclear magnetic resonance, Chromatography, Gas ...

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