I want to use caffeine in a research, but I need to know if it is a primary standard or if I have to standardize it.
Ali Alrikabi
Yes , possible Caffeine use as standard to determination phenolic Compounds
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Marcos Steola
Hi Lucas, Ali is correct, but remember you need know purity of caffeine standard for use in an analytical analysis.
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Michael G. Weller
For analytical purposes, it is the best to use a certified reference material, for example https://www.sigmaaldrich.com/catalog/product/sial/56396?lang=de®ion=DE
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Amir Anisi
Caffeen have been used as an internal standard for assay and some impurity determination weight by weight. Not only is purity important so is shelf life.
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