The Ramped Gc Oven - Thermo Scientific EA IsoLink IRMS System Operating Manual

2
Analytical Principles

The Ramped GC Oven

Figure 48. Nuts and Seals for Adsorption Filter
Seal
Nut
4. Pour sequentially the required filling materials into the adsorption filter, ensuring that each layer
has the indicated size. At each step gently press the quartz wool using the rod provided.
5. Do the last layer using a sufficient quantity of quartz wool to form the required layer.
6. Complete the procedure by screwing on the second nut complete with its seal, as shown in
Figure
Figure 49. Preparation of the Adsorption Filter
The Ramped GC Oven
The Ramped GC Oven is controlled by a JUMO controller. The controller is
pre-programmed and locked. It allows to switch between two setpoints, SP1
and SP2.
• SP1 is the start temperature of 70 °C
• SP2 is the end temperature of 240 °C
When receiving the GC start signal (GC On) from Isodat, the Ramped GC Oven increases
automatically the temperature from SP1 to SP2. When stopping the GC (GC Off ) the oven cools
down to SP1. The starting temperature of 70 °C is defined to separate the N
After the CO
Detailed information can be found in the Ramped GC Oven Operating Manual.
50 EA IsoLink IRMS System for CNSOH Operating Manual
49.
peak a rapid increase of the temperature accelerates the elution of the SO
2
and CO peaks.
2 2
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