Simultaneous Determination of Retinols and Tocols in Egg and Milk Products Based on RP-HPLC Linked with Fluorescent and Photodiode Array

Table 4

Linear range for retinol and tocopherol isomers.

Name	Range (μg/mL)	Calibration curve	R^2
9-cis retinol	0.02∼0.50	Y = 432.3 + 211783.7X	0.9999
11-cis retinol	0.02∼0.50	Y = 488.7 + 82274.3X	1.0000
13-cis retinol	0.02∼0.50	Y = 157.8 + 285759.4X	0.9999
All-trans retinol	0.02∼0.50	Y = 119.1 + 389663.3X	1.0000
α-Tocopherol	0.10∼2.50	Y = −69853.9 + 1116543.5X	0.9993
β-Tocopherol	0.10∼2.50	Y = −42411.4 + 2535083.8X	0.9998
γ-Tocopherol	0.10∼2.50	Y = −60077.5 + 2782667.2X	0.9997
δ-Tocopherol	0.10∼2.50	Y = 663.2 + 3344578.7X	1.0000
α-Tocotrienol	0.10∼2.50	Y = −91398.5 + 1004661.7X	0.9992
β-Tocotrienol	0.10∼2.50	Y = −46799 + 2424243.3X	0.9996
γ-Tocotrienol	0.10∼2.50	Y = −65585.5 + 2760020.3X	0.9995
δ-Tocotrienol	0.10∼2.50	Y = −4499.3 + 2834712.8X	0.9999