Table 5.

Mass spectral data for identification of phenolic acids, flavonols and anthocyanins in blackberry leaves (B) by LC/MS data.

Peak no.	Compound	Rt (min)	Positive ionization mode (+)			Negative ionization mode (−)
			Selected ion	m/z exp.	Fragment ions*	Selected ion	m/z exp.	Fragment ions*
2	cyanidin-3-O-glucoside	2.6–3.1	[M+H]+	449.0	287.0	[M-H]−	446.9	284.7
4	quercetin-3-O-rutinoside	13.6–14.1	[M+Na]+ [M+K]+	633.2 649.2	303.0 286.9 271.0	[M-H]−	609.0	300.7
5	kaempferol-3-O-rutinoside	15.9–16.4	[M+Na]+	617.2	286.9 270.9	[M-H]−	593.0	284.7
6	quercetin-3-O-glucoside	16.6–17.2	[M+Na]+ [M+K]+	487.1 503.0	303.0 286.9 270.9	ND	–	–

^*Peaks corresponding to the aglycon moiety.

ND- non detected.