Pfeiffer Vacuum has introduced two compact, portable benchtop analysers for analysing gases at atmospheric pressure.

The OmniStar and ThermoStar GSD 350 are particularly used in chemical processes, semiconductor, metallurgy, fermentation, catalysis, freeze-drying and environmental analysis applications.

The gas inlet is fitted with a heated capillary for use at up to 350°C. Pfeiffer Vacuum said this prevents vapours from condensing during process gas analysis. Due to the two-stage inlet system, an almost segregation-free gas supply is possible.

The ThermoStar solution was specifically developed for coupling with thermo balances. The inlet system, with a quartz capillary and a platinum orifice, ensures that even the smallest concentrations can be analysed.

The OmniStar was developed for a wide range of applications and uses and includes a stainless-steel capillary as well as a valve which can interrupt the sample gas stream. Unlike other analytical methods such as FTIR or GC-FID, the two new devices allow simultaneous detection of all gases within the mass range.

“With the new PV MassSpec software, it is possible to perform qualitative and quantitative analyses. This software offers a clear and user-friendly platform for recording and displaying measurement data and parameter settings. Even complete measuring procedures can be programmed and automated,” Pfeiffer Vacuum said in a statement.

“The low detection limit (depending on the mass range) of up to <100 ppb, the low gas consumption of 1 - 2 sccm and the fast measuring time (up to 1 ms/u) characterise the new analytical instruments. For extended process customisation, an integrated mass calibration device or a controlled purge gas system for corrosive gases are available.”


Source: Pfeiffer Vacuum