594
GC CHROMATOGRAMS |
ENVIRONMENTAL
Explosives
Explosives
US EPA Method 8095
Rtx®-TNT & Rtx®-TNT2
1. nitrobenzene
2. 2-nitrotoluene
3. 3-nitrotoluene
4. 4-nitrotoluene
5. nitroglycerine
6. 1,3-dinitrobenzene
7. 2,6-dinitrotoluene
8. 2,4-dinitrotoluene
9. 3,4-dinitrotoluene (IS)
10. 1,3,5-trinitrobenzene
11. trinitrotoluene
12. PETN
13. RDX
14. 4-amino-2,6-dinitrotoluene
15. 3,5-dinitroaniline
16. 2-amino-4,6-dinitrotoluene
17. tetryl
Column:
Rtx
®
-TNT, 6m, 0.53mm ID, 1.50µm (cat.# 12998)
Inj.:
direct injection using a 1mm Siltek
®
Uniliner
®
inlet liner (cat.# 21052-214.1)
On-column conc.:
est. 200-1,000pg/compound. 8095 Calibration Mix A (cat.# 31607),
8095 Calibration Mix B (cat.# 31608), and 3,4-dinitrotoluene (cat.# 31452)
Oven temp.:
80°C (hold 1 min.) to 180°C @ 10°C/min. to 300°C @
30°C/min. (hold 3 min.)
Inj. temp.:
250°C
Det.:
ECD @ 330°C with anode purge
Dead time:
4.4 sec.
Head pressure:
helium @ 3psi (20.7 KPa)
Flow rate:
helium @ 17mL/min. @ 80°C
1 2 3
7
8
9
13
15
16
4
5
6
10
11
12
17
14
min.
2
4
6
8
10
GC_EV00406
Improved resolution of
nitroaromatic compounds
such as those listed in US
EPA Method 8095.
Column:
Rtx
®
-TNT2, 6m, 0.53mm ID, 1.50µm (cat.# 12999)
Inj.:
direct injection using a 1mm Siltek
®
Uniliner
®
(cat.# 21052-214.1)
On-column conc.:
est. 200-1,000pg/compound. 8095 Calibration Mix A (cat.# 31607),
8095 Calibration Mix B (cat.# 31608), and 3,4-dinitrotoluene (cat.# 31452)
Oven temp.:
80°C (hold 1 min.) to 180°C @ 10°C/min. to 300°C @
30°C/min. (hold 3 min.)
Inj. temp.:
250°C
Det.:
ECD @ 330°C with anode purge
Dead time:
4.4 sec.
Head pressure:
helium @ 3psi (20.7 KPa)
Flow rate:
helium @ 17mL/min. @ 80°C
1
2 3
5
8
9
16
15,13
4
11
10
12,14
17
7
6
min.
2
4
6
8
10
12
GC_EV00407
Rtx®-TNT2
Rtx®-TNT
restek
innovation
!
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
