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CryoPrep

The trace gas module is a gas purification and concentration device for the 20-22 & GEO series of isotope ratio mass spectrometers.

By utilising gas chromatography, cryogenic focussing & combustion (in a variety of combinations), the CryoPrep allows fully automated analysis of isotope ratios in N₂O, CO, CO₂, N₂, NO, O₂& CH₄ at atmospheric concentrations and has a further capability for measuring N₂/Ar ratios. The module is provided with a stand-alone isothermal gas chromatograph and can use a gas autosampler.

The key features of the CryoPrep include:

Automated cryo-trapping and focus device for condensable gases such as N₂O and CO₂.
Can be used for high performance interfacing to TIC & TOC systems
High temperature oxidation stage for converting CH₄ to CO₂. Built in oxygen supply for regeneration of chemicals.
Flexibility to allow the user to configure their application for the measurement of up to three gas species from a single sample.
Sub-sampling valve to allow analysis of gases at high concentrations.
Full automation for unattended analysis of gases in septum sealed bottles (12, 30, 60, 125 and 250ml).
High quality stainless steel diaphragm regulators for gas control, digital flow and pressure sensors, normally closed valves configured to save gas and preserve consumables in the event of a power failure.
Isothermal Gas Chromatograph with Poraplot-Q and Molsieve PLOT columns.
On-board microprocessor for storage of furnace temperatures and valve status (guards against PC failure or temporary detachment).
Total software control of the instrument system and data processing.
The CryoPrep is a bench-top preparation module ready to be connected to the continuous flow interface of our 20-20 or GEO20-20 series of isotope ratio mass spectrometers.

| Specifications | Isotope Ratio Mass Spectrometers |

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