Specifications
of the GC-CP interface:
- Versatility
of analysis through design - user can choose to work in combustion or
pyrolysis modes through having the facility to operate at temperatures
up to 1200°C.
- Thermally
stable gas train - while the gas control side is composed of high quality
stainless steel diaphragm regulators, the reaction oven is almost entirely
composed of fused silica lines to ensure that joints remain sealed during
temperature gradients in the GC oven.
- Integral
post-reaction gas chromatograph for separation of analyte gases prior
to entering the stable isotope analyser.
- Helium interface
flow prior to the reaction phase which preserves chromatography through
the interface and provides the additional pressure required to drive the
reaction gases through post reaction GC stage.
- Dynamic
water removal by low dead-volume Nafion membrane.
- Reoxidation
of the combustion chemicals is easily achieved by using the built in oxygen
regeneration line connected to the helium interface flow, avoiding the
need for extra valves and ‘backflushing’.
- Stand-alone
multipurpose 1000°C furnace option (usually used for reducing NOx).
- Total software
control of the instrument system and data processing. Allows storage of
sample analysis protocols to comply with good laboratory practice. Unique
isotope ratio calculation method which removes the interference of changing
backgrounds caused by column bleed. Unique data reduction technique that
allows ‘intra peak’ H3+ subtraction when measuring
hydrogen isotopes. Inter-file import/export facility from instrument PC
to laboratory server or internet (allows rapid updating of software or
transfer to common spreadsheet packages). Fully compatible with Windows
3.1, 95 NT and XP.
- The GC-CP
interface is a bench-top preparation module ready to be connected to the
continuous flow interface of our 20-22 or GEO 20-22 series of isotope
ratio mass spectrometers.
| GC_CP | Isotope Ratio Mass
Spectrometers |
