HPLC/MS-MS Identification of Oak Quercus aegilops Root Tannins

Table 1

Compound-dependent voltage parameters.

Analyte	MS-MS parameters
	Q1^1	Q3^2	DP^3	EP^4	CE^5	CXP^6
Ellagic acid	300.6	200.9	−64	−5	−42	−1
Gallic acid	168.8	124.9	−50	−5	−20	−2
Quercetin	300.9	150.9	−50	−5	−27	−1
p-Coumaric acid	162.7	118.8	−33	−5	−20	−2
Ferulic acid	192.9	133.9	−35	−6	−23	−2
Propyl gallate	210.6	124	−60	−5	−35	−2
Pyrocatechol	108.7	90.9	−63	−5	−29	−1
Catechin	288.8	230.8	−40	−3	−24	−1
Taxifolin	302.8	230.8	−32	−3	−19	−2

¹Q1: parent. ²Q3: daughter. ³DP: declustering potential. ⁴EP: entrance potential. ⁵CE: energy of collision. ⁶CXP: cell exist potential.