DIN ISO 9001:2015 certified
costs from €250
Products
Gas GC Filters
A Gas Clean Filter System delivers clean gases, reducing the risks of column damage, sensitivity loss, and instrument downtime. Inserting a Gas Clean Filter System in the gas line immediately before the instrument inlet greatly reduces the level of impurities, thus improving trace analysis. Contaminants entering your GC column will also be reduced, which is critical for high temperature analysis and essential for longer column lifetime.
Replacing the filters when they have reached absorption capacity ensures maximum protection of your GC columns and analytical hardware. The sensitive indicators change color, alerting you that the filter needs to be replaced.
A Gas Clean Filter System allows you to use 99.996% (4.6) pure helium instead of the more expensive 99.999% (5.0) or 99.9999% (6.0) grade, while still yielding high quality analytical results. The expected cost savings are 30%.
Detailed information on the use of gas filters in GC can be found here.
Importance of gas filters in gas chromatography
Contaminants in gases can significantly impact the accuracy of analytical results. Therefore, gas filters are indispensable in gas chromatography (GC), as they increase productivity by purifying the carrier and detector gases. Even if the carrier gas is highly pure, contaminants can still be absorbed from anywhere in the gas line. This can lead to moisture entering the GC column, septum bleeding, or baseline noise.
Advantages of gas filters
- Protection of the GC column against column bleeding and extension of service life: Oxygen or moisture can oxidise or hydrolyse the stationary phase of the column
- Higher sensitivity and accuracy: Reduction of baseline noise, prevention of ghost peaks
- Protection of detectors from contamination, extension of maintenance intervals
- Improved reproducibility through gas purity, more stable retention times, more reliable results
- Cost savings through the use of cheaper carrier gases, prevention of repairs or premature column