. 2018;17(Suppl2):24–32.

Table 5.

The retention times, diagnostic ions and selected quantification ion for the target monoterpens and internal standard

No.	Compound	Retention time	Diagnostic ions	Quantification ion
1	p- Xylene	6.9 ^a, ^b*	106, 91, 77	106
2	α- pinene	7.4^a 7.5^b	136, 121, 93	136
3	Camphene	7.6^a,^b	136, 121, 93	121
4	β- pinene	8.13^a 8.3^b	136, 121, 93	136
5	Cineol	9.01 ^a, ^b	154, 139, 108	154
6	Fenchone	9.9^a	69, 81, 152	81
7	Borneol	10.9^a- 15.5^b	95, 110, 139	139
8	Trans-anethol	12.06^a	117, 147, 148	117
9	Menthol	15.9^b	95, 123, 138	138
10	Menthone	14.3^b	112, 139, 154	112

Temperature program a.

Temperature program b.