Spearmint Oil (Native)
GC
Stabilwax®
LemonOil
GC
Rtx®-5
FOODS, FLAVORS, & FRAGRANCES
22
Phone: 800-356-1688 or 814-353-1300
Flavors & Fragrances
EssentialOils
Essential oil samples are very complex; hundreds of components canbe present and some are present at ppm levels.
Rtx®-1,Rtx®-5
and
Stabilwax®
capillaryGC columns are very effective for these analyses.A comprehensive list of retention times for flavor& fra-
grance compounds on
Rtx®-1
and
Stabilwax®
columns is onpages 28–29.
Todetermine the enantiomeric ratios of volatile components in essential oils, seeChiral Separations (pages 23–26).
2 3 5
19
GC_FF00138
min.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
1
4
6
9
7,8
11
10
12
13
14
15
16
17
18
20
21 22
23
24
25
26
27,28
29
30
31
32
33
34
35
36
38
37
1. heptanol
2.
α
-thujene
3.
α
-pinene
4. camphene
5. sabinene
6.
β
-pinene
7. 6-methyl-5-hepten-2-one
8. myrcene
9. octanal
10.
α
-phellandrene
11. 3-carene
12.
α
-terpinene
13.
p
-cymene
14. limonene
15.
γ
-terpinene
16. octanol
17. terpinolene
18. linalool
19. nonanal
20. citronellal
21. terpinene-4-ol
22.
α
-terpineol
23. decanol
24. octyl acetate
25. nerol
26. neral
27. carvone
28. geraniol
29. geranial
30. nonyl acetate
31. citronellyl acetate
32. neryl acetate
33. geranyl acetate
34. dodecanal
35.
β
-caryophyllene
36.
trans
-
α
-bergamotene
37.
α
-humulene
38.
β
-bisabolene
30m, 0.32mm ID, 0.25µmRtx
®
-5 (cat.# 10224)
Wet needle split injection of a neat lemon oil
Oven temp.:
75°C (hold 8min.) to 250°C@4°C/min.
Inj. & det. temp.:
250°C
Carrier gas:
hydrogen
Linear velocity:
40cm/sec. (flow rate: 3.2cc/min.)
FID sensitivity:
2 x 10
-11
AFS
Split ratio:
100:1
1 2
3
4
5
6 7
8
9
12
10
11
13
14
15
16
17
18
19
20
21
22
23
24
26 27
28
29
30
25
GC_FF00140
1.
α
-pinene
2.
β
-pinene
3. sabinene
4. myrcene
5.
α
-terpinene
6. l-limonene
7. 1,8-cineole
8.
cis
-ocimene
9.
γ
-terpinene
10.
p
-cymene
11. terpinolene
12. 3-octyl acetate
13. 3-octanol
14. l-menthone
15.
trans
-sabinenehydrate
16.
β
-bourbonene
17. linalool
18. terpinene-4-ol
19.
β
-caryophyllene
20. dihydrocarvone
21.
trans
-dihydrocarvyl acetate
22.
trans
-
β
-farnesene
23.
α
-terpineol
24. germacrene-
∆
25. carvone
26.
cis
-carvyl acetate
27.
trans
-carveol
28.
cis
-carveol
29.
cis
-jasmone
30. viridiflorol
60m, 0.25mm ID, 0.25µm
Stabilwax
®
(cat.# 10626)
0.2µL split injection of a neat
spearmint oil
Oven temp.:
75°C
(hold 4min.)
to 200°C
@4°C/min.
(hold 10min.)
Inj. & det. temp.: 250°C
Carrier gas:
hydrogen
Linear velocity:
40cm/sec.
set@160°C
FID sensitivity:
4 x 10
-11
AFS
Split ratio:
100:1
min.
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
