Carrier gases should contain less than 1ppm of
oxygen, moisture, or other trace contaminants to prevent
column degradation, increase column lifetime, and
decrease stationary phase bleed. The expense of using
high-purity gases in combination with carrier gas line
purifiers will be offset by longer column lifetime and
less GC maintenance.
Contaminants cause ghost peaks to appear during temperature programming and degrade the validity of analytical data. Make-up gas also should be contaminant-free, or baseline fluctuations and excessive detector noise can occur. Detector gases should be free of water and hydrocarbons, or excessive baseline noise can result. Gas purifiers remove these contaminants from gas sources, thereby improving system performance.
|B013||VISACON Gas Purifiers|
Ghost peaks in gas chromatography - The Carrier Gas and Carrier Gas Lines
..... (Visacon) "In the past we have only offered these products to a handful of the largest chromatography instrument companies. You have probably purchased our products from one of these well-known companies without knowing it was our product.
Originally, we set up our business with one thing in mind - keep the customer happy. We have sold and manufactured our products for over 20 years, and we finally got sick of seeing how much some of the big companies were charging. So, we cut them out. You get the same quality you are used to, but at a much better price."