Table 3.

Standard curve, characteristic ions, and concentration of key aroma compounds in 15 EVOOs by external standard.

Compounds	Ion Selection (m/z)	Standard Curve	R 2	Concentration (mg/L)
				PL	BDS	OL	BLN	YGY	OLWL	OS	ALCF	MNN	AN	XBK	DMDN	MSWN	AGL	DNLE
Hexanal	56.2, 72.2, 82.2	y = 0.1546x	0.9950	1.06 ± 0.17	0.92 ± 0.12	1.88 ± 0.39	0.64 ± 0.14	2.16 ± 0.22	1.23 ± 0.09	4.27 ± 0.03	1.69 ± 0.09	1.72 ± 0.03	1.84 ± 0.03	4.31 ± 0.10	1.37 ± 0.07	1.90 ± 0.04	1.76 ± 0.18	2.00 ± 0.11
(E)-2-Hexenal	69.2, 83.2, 98.2	y = 0.5272x	0.9953	0.30 ± 0.01	1.01 ± 0.14	0.33 ± 0.07	0.69 ± 0.11	1.58 ± 0.03	1.52 ± 0.18	4.61 ± 0.77	3.05 ± 0.12	2.67 ± 0.14	3.81 ± 0.12	3.92 ± 0.00	3.25 ± 0.46	1.66 ± 0.01	3.87 ± 0.17	6.99 ± 0.35
(Z)-3-Hexenyl acetate	67.2, 82.2	y = 0.8552x	0.9940	0.86 ± 0.09	2.22 ± 0.25	0.72 ± 0.16	2.32 ± 0.29	1.01 ± 0.02	1.87 ± 0.20	3.00 ± 0.65	1.19 ± 0.01	1.92 ± 0.19	2.22 ± 0.23	1.80 ± 0.01	2.10 ± 0.42	1.93 ± 0.09	3.70 ± 0.19	3.96 ± 0.08
(E)-3-Hexenol	55.2, 67.2, 82.2	y = 0.3685x	0.9974	0.72 ± 0.01	1.63 ± 0.24	0.63 ± 0.10	1.60 ± 0.16	1.32 ± 0.05	1.41 ± 0.09	1.69 ± 0.33	1.09 ± 0.00	1.19 ± 0.05	1.20 ± 0.15	0.83 ± 0.05	1.03 ± 0.10	0.74 ± 0.03	0.64 ± 0.91	0.83 ± 0.01
Acetic acid	60.2	y = 0.1964x	0.9970	2.32 ± 0.18	3.94 ± 0.58	2.21 ± 0.33	4.59 ± 0.38	2.14 ± 0.09	0.64 ± 0.05	3.05 ± 0.50	2.38 ± 0.10	3.07 ± 0.08	1.54 ± 0.18	0.82 ± 0.03	0.81 ± 0.04	0.86 ± 0.02	0.55 ± 0.03	1.21 ± 0.04
(E)-2-Heptenal	55.2, 83.2, 112.2	y = 8.4945x	0.9948	0.30 ± 0.01	0.13 ± 0.01	0.48 ± 0.03	0.06 ± 0.01	0.24 ± 0.02	0.36 ± 0.01	0.44 ± 0.04	0.26 ± 0.02	0.39 ± 0.01	0.31 ± 0.01	0.43 ± 0.03	0.43 ± 0.03	0.31 ± 0.01	0.14 ± 0.02	0.26 ± 0.01
6-Methyl-5-hepten-2-one	69.2, 108.2, 126.2	y = 30.406x	0.9982	0.04 ± 0.00	0.04 ± 0.00	0.07 ± 0.01	0.02 ± 0.00	0.09 ± 0.01	0.06 ± 0.00	0.11 ± 0.01	0.06 ± 0.00	0.06 ± 0.00	0.08 ± 0.00	0.03 ± 0.00	0.08 ± 0.01	0.06 ± 0.00	0.03 ± 0.00	0.07 ± 0.00