- The Micro Capillary is glued into a m5 grub screw which is located in the sample transfer assembly.

​- The flow through the capillary is 7 – 10 ml/min, while the flow rate through the leak element is around 5x10-4 mbar l/s, i.e. only a small fraction (<1%) of the gas entering the system through the capillary passes to the ion source, the remainder being exhausted via the rotary pump.

- The flow through the capillary, transfer line, inlet probe and bypass line to the pump can be considered as a fast loop, so that changes in sample gas composition are rapidly transmitted to the inlet probe.