CRYO-1 and CRYO-2 Cryogenic Systems
The capabilities of cryoluminescence techniques are implemented using
cryogenic CRYO-1 and CRYO-2 systems. The CRYO-1 cryospectral system
(in the picture) comprises a FLUORAT�-02-2M analyzer, cryogenic unit,
and a spectral analysis unit (an LM-3 monochromator), which are connected
with one another via fiber optical bundles. The cryogenic unit, where
a substance under study is cooled to the liquid-nitrogen temperature
(77 K), consists of a rack, Dewar vessel, and device for the uniform
feed of samples for measuring (max 12 simultaneously cooled samples).
The CRYO-1 system is intended for determination of weight concentration
of benz[a]pyrene in various objects from quasi-line fluorescence spectra
arising due to the Shpolsky effect. Thus a high sensitivity and selectivity
of the analysis is obtained.
The CRYO-2 cryospectral system comprises a FLUORAT�-02-2M analyzer
and a cryogenic unit, which are also connected with each other via
fiber optical bundle. CRYO-2 is intended for measuring concentration
of lead in samples of drinking, natural, and wastewater, and in food
products. The assaying techniques are based on measuring the intensity
of luminescence of lead chloride complexes in solutions at a temperature
of 77 K and thereby determining the lead concentration using a calibrated
FLUORAT�-02-2M analyzer. In addition, Bi, Te, and Se can also be detected.
These techniques are high-sensitive and need very simple sample preparation.