https://www.selleckchem.com/pr....oducts/jnj-42226314.
Chlorogenic acids (CGAs) are a large class of esters formed between quinic acid and hydroxycinnamic acids. They are present in coffee as a complex mixture of positional and geometric isomers, where caffeoylquinic acids (CQAs) are the most abundant, followed by dicaffeoylquinic acids (diCQAs), feruloylquinic acids (FQAs), and p-coumaroylquinic acids (p-CoQAs). The aim of this work is to develop a new reliable and fast liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for simultaneous identification and quantification
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