655
GC CHROMATOGRAMS |
PETROLEUM & PETROCHEMICAL
Hydrocarbons
Aromatics (Xylene Isomers plus Cumene)
5% Rt®-1200/1.75% Bentone® 34
(packed)
1 2
3
4
5
6
7 8
9 10
11
min.
2
4
6
8
10
12
14
1. hexane
2. benzene
3.
n
-octane
4. toluene
5.
n
-nonane
6. ethylbenzene
7.
p
-xylene
8.
m
-xylene
9.
o
-xylene
10. cumene
11.
n
-decane
Column:
5% Rt
®
-1200/1.75% Bentone
®
34 on 100/120 Silcoport
®
,
1.8m,
1
/
8
" OD, 2mm ID SilcoSmooth
®
tubing (cat.# 80125)
Sample size:
0.1µL
Conc.:
0.5µg/µL in hexane
Oven temp.:
75°C
Inj./det. temp.:
200°C
Carrier gas:
nitrogen
Flow rate:
20mL/min.
FID sensitivity:
32 x 10
-11
AFS
GC_PC00192
Aromatics (Xylene Isomers /BTEX)
5% Rt®-1200/5% Bentone® 34
(packed)
1
2
3
4
5
6
1. benzene
2. toluene
3. ethylbenzene
4.
p
-xylene
5.
m
-xylene
6.
o
-xylene
Column:
5% Rt
®
-1200/5% Bentone
®
34 100/120 Silcoport
®
,
2m,
1
/
8
" OD, 2mm ID SilcoSmooth
®
tubing (cat.# 80129)
Sample size:
0.1µL
Conc.:
0.5µg/µL in hexane
Oven temp.:
100°C
Inj./det. temp.:
200°C
Carrier gas:
nitrogen
Flow rate:
20mL/min.
FID sensitivity:
32 x 10
-11
AFS
GC_PC00193
min.
1
2
3
4
5
6
7
Aromatics
Rt®-TCEP
min. 0
2
4
6
8
10
12
14
16
18
GC_PC00211
15
14
13
12
11
9
10
87
6
5
4
2 1
3
1.
n
-undecane
2. benzene
3.
n
-dodecane
4. toluene
5. ethylbenzene
6.
p
-xylene
7.
m
-xylene
8. cumene
9.
n
-propylbenzene
10.
o
-xylene
11. mesitylene
12. 1-ethyl-2-methylbenzene
13.
m
-diethylbenzene
14.
p
-diethylbenzene
15.
o
-diethylbenzene
Column:
Rt
®
-TCEP, 60m, 0.25mm ID, 0.40µm
(cat.# 10999)
Inj.:
1.0µL split injection, components @
500ppm (ethylbenzene @ 1000ppm)
Oven temp.:
60°C (hold 5 min.) to 100°C
@ 5°C/min. (hold 10 min.)
Inj./det. temp.:
200°C
Carrier gas:
helium
Linear velocity:
30cm/sec. set @ 80°C
FID sensitivity:
6.4 x 10
-11
AFS
Split flow:
46mL/min.
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Mar 2011
