Turbidofluorimeter BioTF, GOST-R № 56270-14.
Turbidofluorimeter BioTF is an instrument to measure the dynamic change of light scattering intensity and fluorescence at given temperatures in turbid microbiological liquids and solutions. The phenomenon of fluorescence, the visible or invisible radiation produced from certain substances as a result of incident radiation of given wavelengths, lies in the core of the method (fluoremeter measurement channel). BioTF instrument and method are based on the ability of light to disperse and to get absorbed by the particles suspended in liquids (turbidemeter measurement channel). When measuring fluorescence in turbid solutions the value of the solution turbidity is taken into account. Sample analyses are carried out in test tubes with flat lids. Test tubes are thermostated at given temperatures.