634
GC CHROMATOGRAMS |
FOODS, FLAVORS & FRAGRANCES
Food Contaminants
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Food Packaging Volatiles by Purge & Trap GC/MS
Rtx®-5MS
(Purge & Trap GC/MS)
1. ethyl acetate
2. toluene
3. 4-heptanone
4.
n
-butyl ether
5. styrene
6. alkanes
Column:
Rtx
®
-5MS, 30m, 0.25mm ID, 1µm (cat.# 12653)
GC:
Agilent 6890
Oven temp.:
50°C to 92°C @ 3°C/min., to 220°C @
20°C/min. (hold 1 min.)
Injector temp.:
250°C
Carrier gas:
helium
Linear velocity:
36cm/sec. (1mL/min.)
Det. sensitivity:
NA
Split ratio:
20:1
Det.:
MSD (Agilent 5973)
Det. temp.:
280°C
Scan range:
35-260amu
Ionization:
EI @ 70eV
Mode:
Sample Conditions:
Sample:
Overwrap, inner bowl
Concentrator:
Tekmar LSC-3100 purge & trap
Trap:
Vocarb 3000, type K
Purge:
10 min. @ 40mL/min., at 60°C
Dry purge:
3 min. @ 40mL/min.
Desorb preheat:
220°C
Desorb:
245°C, 2 min., 40mL/min.
Bake:
230°C, 6 min.
Interface:
1:20 split at injection port with 1mm ID inlet liner
Transfer line:
0.53mm ID Silcosteel
®
MXT
®
tubing (cat.# 22501)
GC_FF00462
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Food Packaging Volatiles by Purge & Trap GC/MS
Rtx®-5MS
(Purge & Trap GC/MS)
GC_FF00461
1. tetrahydrofuran
2. ethylbenzene
3. 4-heptanone
4. styrene
5. benzaldehyde
6. nonanal
7. decanal
8. cinnamaldehyde
Column:
Rtx
®
-5MS, 30m, 0.25mm ID, 1µm (cat.# 12653)
GC:
Agilent 6890
Oven temp.:
50°C to 92°C @ 3°C/min., to 220°C @
20°C/min. (hold 1 min.)
Inj. temp.:
250°C
Carrier gas:
helium
Linear velocity:
36cm/sec. (1mL/min.)
Det. sensitivity:
NA
Split ratio:
20:1
Det.:
MSD (Agilent 5973)
Det. temp.:
280°C
Scan range:
35-260amu
Ionization:
EI @ 70eV
Mode:
Sample Conditions:
Sample:
Overwrap, lid of bowl
Concentrator:
Tekmar LSC-3100 purge & trap
Trap:
Vocarb 3000, type K
Purge:
10 min. @ 40mL/min., at 60°C
Dry purge:
3 min. @ 40mL/min.
Desorb preheat:
220°C
Desorb:
245°C, 2 min., 40mL/min.
Bake:
230°C, 6 min.
Interface:
1:20 split at injection port with 1mm ID inlet liner
Transfer line:
0.53mm ID Silcosteel
®
MXT
®
tubing (cat.# 22501)
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
