METHOD FOR DETECTING AGGREGATIVE INSTABILITY OF COLLOIDAL SYSTEMS OF NATURAL ORIGIN AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC G01N33/483 G01N27/72 

FIELD: physical chemistry; biophysics.

SUBSTANCE: invention refers primarily to physical chemistry and biophysics, and can be used in medicine, as well as human and animal biology and physiology. Method involves generation of a microwave band signal, dividing it into a reference signal and a measuring signal, which is divided into a constant and a test component such that the amplitude of the constant component is approximately 1/3 of the amplitude of the measurement signal. Phase of reference signal is shifted with preset frequency on π/2; constant component is returned to detector side, and the test component is emitted through the matching dielectric insert into the analyzed colloidal medium, and then reception of the signal emitted by the signal, which is modulated by the low frequency signal, is realized on the detector. At that thickness of dielectric insertion is selected so that at condition of turn of phase of signal from reference liquid (water double distillate at temperature 37.4±0.1 °C) on π vector sum of its amplitude and amplitude of the constant component could be reduced to zero by shifting the phase of the test component on the waveguide transformer-decelerator. Investigation of interaction of test radiation with substance of sample of colloid medium is carried out against background of compaction of this substance by forced extraction of free water from it in absence of additional heating of this substance, and availability of potentials of aggregative instability in it is determined by deviations of empirical results from theoretical curve. Also disclosed is an apparatus for realizing said method.

EFFECT: possibility of detecting aggregative instability of colloidal systems of natural origin.

2 cl, 1 dwg