The Ionplus Gas Interface System (GIS) is the most versatile gas handling system for 14C-AMS measurements of CO2. Direct measurements of CO2 are performed on ultra-small samples (3 to 100 µg C), lower precision samples for screening and samples that require high throughput. Sample CO2 is mixed with helium and the mixture is continuously fed into the ion source of MICADAS or any other gas-capable AMS system by means of a stepping motor-driven gas syringe.
GIS can handle CO2 from the following sources:
All functionalities of the instrument are software-controlled and the first three coupling options are fully automated for gas measurements without user interaction for 8 to 40 samples. Moreover, the coupling of virtually any device is possible through the integrated zeolite trap.