Table 1.

Comparison of solvent and matrix standard curves and matrix effects of naringenin enantiomers.

Enantiomers	Matrices	Calibration curve	Correlation coefficient	Matrix effect
			(R 2)	(%)
S-naringenin	methanol	y = 10,440x – 41,712	0.9,992	/
	orange pulp	y = 14,883x + 54,434	0.9,990	42.6
	orange peel	y = 10,079x – 13,455	0.9,992	−3.5
R–naringenin	methanol	y = 11,065x + 21,490	0.9,987	/
	orange pulp	y = 12,543x – 25,435	0.9,992	13.4
	orange peel	y = 11,130x – 47,841	0.9,985	0.6