Key words: supercritical fluids, phase behavior, hollow fibers
New method to monitor phase behavior of mixtures at high pressures and temperatures was developed on basis of continuous sampling by use of glass capillary. Such technique gives opportunity not to disturb equilibrium in the system and to get information about phase state in continuous flow systems at different stages of process. As a detector the flame-ionization detector (FID) was chosen due to the fact that our solvents are not flammable and will not give signal. Method was validated using two different setups on systems: water.ethanol and CO2 acetone.