704
GC CHROMATOGRAMS |
SOLVENTS & CHEMICALS
Amines
Ethyleneamines
Rtx®-5 Amine
1 2
3
4
5
6
7
min.
5
10
15
20
25
GC_CH00298
Column:
Rtx
®
-5 Amine, 30m, 0.25mm ID, 0.50µm (cat.# 12338)
Sample:
3.0µL split injection of ethyleneamine industrial sample
On-column conc.:
~5-80ng
Oven temp.:
40°C (hold 4 min.) to 315°C
@ 10°C/min. (hold 5 min.)
Inj./det. temp.:
315°C
Carrier gas:
hydrogen
Linear velocity:
43cm/sec. set @ 40°C
FID sensitivity:
6.4 x 10
-11
AFS
Split ratio:
20:1
1. isopropanol
2. monoethanolamine
3. ethylenediamine
4. piperazine
5. diethylenetriamine
6. aminoethylethanolamine
7. aminoethylpiperazine
remaining impurities consist of
ethyleneamine and piperazine
derivatives
Amines (lowMW)
Stabilwax®-DB
Column:
Stabilwax
®
-DB, 30m, 0.53mm ID, 1.0µm (cat.# 10855)
Sample:
1.0µL direct injection of amines in water
Oven temp.:
45°C
Inj./det. temp.:
250°C
Carrier gas:
hydrogen
Linear velocity:
40cm/sec. (flow rate: 5cc/min.)
FID sensitivity:
1 x 10
-11
AFS
Recommended
inlet liner:
Uniliner
®
1. trimethylamine
2. dimethylamine
3. ethylamine
4. methylamine
5. isopropylamine
6.
n
-propylamine
7.
tert
-butylamine
8. diethylamine
9.
sec
-butylamine
1
2
3
4
5
6
7
8
9
GC_CH00304
min.
1
2
3
1. methylamine
2. dimethylamine
3. trimethylamine
4. ethylamine
5. isopropylamine
6.
tert
-butylamine
7.
n
-propylamine
8. diethylamine
9.
sec
-butylamine
Amines, Primary
Rtx®-35 Amine
1
2/3
4
5
6
7
8
9
GC_CH00578
Column:
Rtx
®
-35 Amine, 30m, 0.53mm ID, 1.0µm (cat.# 11355)
Sample:
primary amines, 50ppm on-column conc. in water
Inj.:
1.0µL, split (10:1), 4mm base-deactivated single
gooseneck inlet liner (cat.# 20798-210.1)
Injector:
250°C
Carrier gas:
helium, constant pressure
Linear velocity:
35.7cm/sec.
Oven temp.:
35°C (hold 5.0 min.)
Det.:
FID @ 300°C
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TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
