Table 1. MRM conditions of LC/MS/MS analyses of vitamins

Compound	Pol.	Parent ion	Daughter ion	Frag	CID
Riboflavin (B2)	ESI+	377.1	244	110	25
Vitamin B6-B	ESI+	169	152.0	70	10
Vitamin B6-C	ESI+	170	151.9	50	10
Ascorbic acid (C)	ESI+	176.9	140.8	50	5
Retinol (A)	API+	285.24	105.05	4	34