Varian gas clean filter technology reduces contamination
Varian has made three significant advances to its Gas Clean filter system, which delivers clean gases for GC (gas chromatography) and GC/MS (gas chromatography/mass spectrometry), LC/MS (liquid chromatography/mass spectroscopy) and ICP (inductively coupled plasma) operations. New to the Gas Clean family is a carbon dioxide filter that improves the sensitivity of flame photometric detectors in GC and the CO2 detector in Total Organic Carbon analysers.
Also new is the universal high-flow base plate that handles flow rates up to 20L/min, compatible with all Varian filters. Applications have been expanded to include use with collision gas to prevent mass interferences in LC/MS, and for argon supply filtering in ICP-OES and ICP-MS.
Improvements to the absorbent materials in both the GC/MS and moisture filters allow them to stabilise more quickly to reduce downtime and improve productivity, the company says.
In gas chromatography, the filters are positioned in the gas line between the compressed gas cylinders and the instrument. With the filters in place, Varian says chemists can save money by using less expensive gases while offering equivalent or improved data quality. For example, the filters provide immediate savings of up to 50% on helium, with no loss in analytical quality.
