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. 2021 Jan 25;26(3):614. doi: 10.3390/molecules26030614

Table A1.

Optimized parameters for the LC-ESI-MS/MS quantitative analysis of phenolic acids and flavonoids.

Compund Precursor Ion
m/z
[M-H]
Product Ion,
m/z
[M-H]
DP, V EP, V CE, V CXP, V
Quinic acid 190.96 92.9 * −70 −10 −32 −5
126.8 −70 −10 −26 −7
Gallic acid 168.919 124.7 * −60 −10 −22 −5
78.8 −60 −10 −32 −11
5-Caffeoylquinic acid 353.023 190.8 * −60 −10 −24 −9
84.7 −60 −10 −66 −11
3-Caffeoylquinic acid 353.023 190.8 * −70 −10 −26 −13
178.9 −70 −10 −28 −13
Caffeic acid 178.952 134.7 * −60 −10 −24 −7
134.2 −60 −10 −36 −1
Quercetin 300.903 150.8 * −115 −10 −30 −7
178.6 −115 −10 −26 −7

* Transition used for quantification.