@Configuration & Options

Using a multi positioning valve, the system can select between standards from, e.g., a tedlar bag or taking sample directly from the outside via, e.g., a probe on the roof of a mobile lab.

Via a smart flow system, sample is pumped through the injector port liner containing a suitable trapping material in reverse flow from bottom to top trapping the analytes, while the carrier gas is re-routed to the GC capillary column by-passing the injector port. Sampling is during a fixed time with a constant flow controlled with a mass flow controller, without the use of additional coolant as LN2 or CO2.

Once the sampling period has finished, the carrier gas via the injector port is re-established. Following, the injection port is heated to desorb the analytes from the injection port liner for transfer to the GC capillary column. In parallel to start heating the injection port liner, the GC–MS analysis has started.