The performance capabilities of the new AI/AS autosampler Finnigan AI/AS3000, designed to acheive automatic liquid injection in capillary GC, are illustrated and discussed, using both hot needle and cold needle SSL injection techniques.  These very different injection methods involve independent mechanisms of sample preparation: liquid band formation and thermospray respectively.  Depending on the injection method selected, one of these two mechanisms will strongly influence the sample evaporation process and the sample transfer to the separation column.  The new AI/AS3000 is designed to permit easy, appropriate selection of the operating conditions in order to avoid mixed vaporization mechanisms which are the main source which is the main source of repeatability.

To view the complete poster, please download the PDF file below.