The LCGC Blog-08-06-2013

The LCGC Blog

The LCGC Blog: Chromatography Technical Tips - Five Ways to Improve Your Split/Splitless Injection Technique

August 06, 2013



Split/splitless injectors typically vaporise a sample dissolved in a suitable organic solvent under increased temperature. The sample vapours are entrained into the carrier gas flow inside a "liner" or "sleeve" within the inlet and from there pass into the column or out of the inlet via "split" line / valve. Splitless injection is used to perform an "on-instrument" dilution and the relative amounts of sample which enter the column or discarded to waste via the split line are adjusted using the relative carrier and split flow rate ratio.