613
GC CHROMATOGRAMS |
FOODS, FLAVORS & FRAGRANCES
Chi ral Separat ions
Irone Isomers - Rt®-
β
DEXcst
1. (-)-(2R,6R)-
trans
-
α
-irone
2. (+)-(2S,6S)-
trans
-
α
-irone
3. (+)-(2R,6R)-
trans
-
γ
-irone
4. (-)-(2S,6S)-
trans
-
γ
-irone
5. (+)-(2R,6S)-
cis
-
α
-irone
6. (+)-(2R,6S)-
cis
-
γ
-irone
7. (-)-(2S,6R)-
cis
-
γ
-irone
8. (-)-(2S,6R)-
cis
-
α
-irone
9. (+)-(2R)-
β
-irone
10. (-)-(2R)-
β
-irone
Column:
Rt
®
-
β
DEXcst, 30m, 0.32mm ID, 0.25µm
(cat.# 13102)
Oven temp.:
40°C (hold 1 min.) to
230°C @ 2°C/min. (hold 3 min.)
Carrier gas:
hydrogen
Linear velocity: 80cm/sec. set @ 40°C
Det.:
FID @ 220°C
1 2
3
4
5
6
7
8
9
10
min.
40
GC_FF00150
1-octen-3-ol and carvone - Rt®-
β
DEXsa
Column:
Rt
®
-
β
DEXsa, 30m, 0.32mm ID, 0.25µm
(cat.# 13108)
Oven temp.:
40°C (hold 1 min.) to
230°C @ 2°C/min. (hold 3 min.)
Carrier gas:
hydrogen
Linear velocity: 80cm/sec. set @ 40°C
Det.:
FID @ 220°C
1
min.
20
30
40
2
1. (+/-)1-octen-3-ol
2. (-)carvone
3. (+)carvone
3
GC_FF00151
γ
-lactones - Rt®-
β
DEXcst
1. (+/-)
γ
-heptalactone
2. (+/-)
γ
-octalactone
3. (+/-)
γ
-nonalactone
4. (+/-)
γ
-decalactone
5. (+/-)
γ
-dodecalactone
Column:
Rt
®
-
β
DEXcst, 30m,
0.32mm ID, 0.25µm
(cat.# 13102)
Oven temp.:
60°C (hold 1 min.) to
200°C @ 1°C/min.
Carrier gas:
hydrogen
Linear velocity: 40cm/sec. set @ 60°C
Det.:
FID @ 220°C
min.
100
120
140
1
2
3
4
5
GC_FF00152
β
-citronellol - Rt®-
β
DEXsa
Column:
Rt
®
-
β
DEXsa, 30m, 0.32mm ID,
0.25µm (cat.# 13108)
Oven temp.:
40°C (hold 1 min.) to 230°C
@ 2°C/min. (hold 3 min.)
Carrier gas:
hydrogen
Linear velocity: 80cm/sec. set @ 40°C
Det.:
FID @ 220°C
min.
51
52
53
1
2
1. (-)-(S)-
β
-citronellol
2. (+)-(R)-
β
-citronellol
GC_FF00153
δ
-lactones - Rt®-
β
DEXcst
1. (+/-)
δ
-pentalactone
2. (+/-)
δ
-hexalactone
3. (+/-)
δ
-heptalactone
4. (+/-)
δ
-octalactone
5. (+/-)
δ
-nonalactone
6. (+/-)
δ
-decalactone
7. (+/-)
δ
-dodecalactone
Column:
Rt
®
-
β
DEXcst, 30m,
0.32mm ID, 0.25µm
(cat.# 13102)
Oven temp.:
60°C (hold 1 min.) to
200°C @ 1°C/min.
Carrier gas:
hydrogen
Linear velocity:
40cm/sec. set @ 60°C
Det.:
FID @ 220°C
1
2
3
4
5
6
7
min.
100
120
140
GC_FF00154
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Mar 2011
