Dual Capillary Column System for the Qualitative Gas Chromatography: 2. Comparison between Splitless and On-Column Injection Modes

摘要

A dual capillary column system is described for the simultaneous analysis of a given and measurement of retention index (RI) and area ratio (AR) values of each peak on two capillary columns of different polarity, DB-5 & DB-1701 from a single injection. Both capillary columns were connected to either a splitless injector or an on-column injector via a deactivated fused-silica capillary tubing of 1 m length and a `Y` splitter. Both injection modes allowed to measure RI and AR values with high reproducibility (