METHOD OF FINDING VOLATILE MATTERS SOLVED IN LIQUID Russian patent published in 1995 - IPC

FIELD: chromatographic analysis. SUBSTANCE: method is meant for chromatographic finding of volatile matters solved in liquid, for monitoring of pollution degree of natural waters and sewage. Analyzed liquid and flow of extracting gas are let pass simultaneously and continuously in opposite or mutually perpendicular directions through three-layer porous unit 1 of inert material. Face layers have larger density than inner layer 4 and are impenetrable for liquid under working pressure of filtering of liquid through inner layer. Feed and sampling of liquid are conducted through hole 3 located opposite to inner layer of unit and supply and sampling of gas are performed from side of face layers of units. EFFECT: reduced time and improved authenticity of analysis. 2 dwg, 2 tbl