METHOD OF DETERMINING CONCENTRATION OF CELLS IN SUSPENSION OF MICROALGAE Russian patent published in 2020 - IPC G01N21/59 G01N33/487 

FIELD: optics.

SUBSTANCE: invention relates to analysis of materials by determining their physical properties using optical means. Method of determining concentration of cells in a suspension of microalgae comprises passing light through a layer of light flux with wavelength from 510 to 580 nm, fixing the value of the light flux after passing through this layer and determining the concentration of cells in the suspension of microalgae by a calibration curve. Light flux is passed from a light-emitting diode with a maximum emission wavelength of 550 nm placed into the volume, fixing the light flux value after passage of the suspension layer by the photoreceiver located in the suspension volume at distance of 1 cm from the light-emitting diode, measuring the voltage occurring when the light flux penetrating through the suspension layer reaches the photodetector, and the concentration of cells in the suspension of microalgae is determined from a calibration curve which shows the relationship between cell concentration and stress.

EFFECT: technical result consists in simplification, reduction of duration and reduction of labour intensity of analysis.

1 cl, 1 tbl, 1 dwg