Friedhelm Müller

Trace analysis in coupled systems : Total transfer of traces from packed to capillary columns

Abstract The known advantages and disadvantages of packed and capillary columns prompted an attempt to combine the two types. Owing to the different carrier gas flows, this was only possible at the expense of sample, i.e., a higher detection limit. The newly developed trap described is based on the “live principle” and enables components to be transferred from a packed to a capillary column without any loss. It can accommodate both the high flow-rates from the packed column and the low flow-rates supplying the capillary column.