A look at the hardware 
39 
IRMS- 
IAEA 
NFI 
Conditions 
Hardware and Operation 
GC 
Trace GC 
Agilent 7890A 
IRMS-lnstrument 
GC-lsollnk-Conflo IV 
Thermo MAT 253 
Detector 
Delta V advantage 
Carrier gas 
He, H2, other 
He 
He 
Column 
Name 
DB5 
HP5 
Length [m] 
30 
30 
Diameter [mm] 
0.25 
0.32 
Film [pm] 
0.25 
0.25 
non-polar, 5m, 0.53 mm I.d. 
Injection 
Volume [pL] 
1 
1 
Injection temp. [°C] 
60 
300 
Pre Inject, delay [sec] 
- 
0 
Injection type 
on column 
? 
Oven program 
Start [°C] 
60 
60 
Hold_start [min] 
- 
1 
Rate_l [°C/mln] 
10 
30 
Rate_l_end [°C] 
100 
150 
Hold_l [min] 
- 
0 
Rate_2 [°C/mln] 
3 
5 
End temperature [°C] 
310 
320 
Hold_end [min] 
19 
32