Table 1.

sMRM NI transitions (Q1 and Q3 masses) and mass spectrometry parameters. The two most sensitive transitions for each species were monitored.

Analytes	Q1 (m/z)	Q3 (m/z)	t R (min)	DP (V)	EP (V)	CEP (V)	CE (V)	CXP (V)
Hydroxytyrosol	153	123/93	3.4	−34	−75	−17.32	−20/−31	−1.08/−1.35
Oleuropein	539	275/307	7.9	−40	−5	−31.61	−28/−29	−1.89/−2.12

t _R: retention time; DP: Declustering Potential; EP: Entrance Potential; CEP: Collision cell Entrance Potential; CE: Collision Energy; CXP: Collision cell eXit Potential.