Transfer of Water-Containing Solvent Mixtures

2 DIRECT INJECTION BY USING CONCURRENT SOLVENT EVAPORATION 

As mentioned above, concurrent solvent evaporation does not need good wettability of the solvent used for the LC-GC transfer. However, due to the large amount of vapour released and the high temperatures needed for concurrent solvent evaporation 

A partial solution to the problem of producing sharp peaks at low elution temperatures is to add a small amount of a higher-boiling co-solvent to the main solvent. As suggested by Grob and Muller (23, 24), butoxyethanol can be used as a suitable cosolvent for aqueous mixtures in such cases. 

4 DIRECT INTRODUCTION OE WATER VIA A VAPORIZER CHAMBER/PRECOLUMN SOLVENT SPLIT/GAS DISCHARGE INTEREACE 

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