METHOD FOR DETERMINING VOLATILE SUBSTANCES SOLVED IN LIQUID Russian patent published in 1995 - IPC

FIELD: measurement technology; chromatography. SUBSTANCE: method involves extracting with carrier gas flow analyzed substances into gas phase by means of filtration of the analyzed liquid sample through three-layer sorbent block layer having greater density of its outer layers. Three- layer block from a material wettable by the analyzed liquid is used as sorbent. The end face outer layers have density, which is greater than that of the inner layers. Analyzed liquid flow and the extracting gas flow pass through in mutually perpendicular directions simultaneously and continuously so that the flow of liquid passes in series all sorbent layers under pressure, which is lower than the extracting gas pressure. EFFECT: enhanced effectiveness of the method. 1 dwg