Research Article

Synchronized Survey Scan Approach Allows for Efficient Discrimination of Isomeric and Isobaric Compounds during LC-MS/MS Analyses

Figure 3

Product ion spectra and fragmentation pathway of diCQA positional isomers: (a) 3,4-diCQA, (b) 3,5-diCQA, and (c) 4,5-diCQA detected in Bidens pilosa plant extracts. Product ion spectra and fragmentation pathway of CQA glycoside positional isomers: (d) 3-O-(4′-O-caffeoyl glucosyl) quinic acid and (e) 4-O-(4′-O-caffeoyl glucosyl) quinic acid detected in Moringa oleifera plant extracts.
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