PURPOSE: To easily perform liquid extraction operation from a pressure reaction vessel at the arbitrary time and to immediately dilute the extracted liquid, causing no boiling of the liquid and sedimentation from it.
CONSTITUTION: A pressure reaction vessel 1 and a liquid collecting bottle are provided. The pressure reaction vessel 1 contains a sample to be reacted which is hermetically sealed therein and permits rotary agitation in a heated state. A filter 17 for causing only a liquid phase to flow out is fitted to the inner end of a liquid extraction hole 16 made in a closed cover 19 and simultaneously a female quick connector 19 is fitted to the outer end of the liquid extraction hole. A male quick connector communicating with an introducing pipe inserted into the liquid collecting bottle is fitted to a mouth part of the liquid collecting bottle. Inner passages of both the female quick connector 19 and the male quick connector are made liquid-tightly connectable by fitting the male quick connector into the female quick connector and the female quick connector 19 is provided with an outflow valve 32 for causing the liquid in the vessel to flow out.
YOSHIKAWA HIDEKI
NOZAKI MIHOKO
