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Moscow, Russia

Amelin V.G.,Vladimir State University | Aleshin N.S.,Vladimir State University | Abramenkova O.I.,Vladimir State University | Nikolaev Yu.N.,Research and Experimental Institute of Automobile Electronics and Electrical Equipment | Lomonosov I.A.,NPO Pribor
Journal of Analytical Chemistry | Year: 2011

A fluorimeter is developed, which provides sample pretreatment, preconcentration of analytes from natural waters on the surface of indicator cellulose matrices, and the simultaneous measurement of their fluorescence. The device employs a L-711UVC ultraviolet light diode and a Digital color sensor S9706 photodiode, which registers simultaneously in the red (615 nm), green (540 nm), and blue (465 nm) spectrum regions. The opportunities of the application of this fluorimeter have been shown by an example of determination of 1-100 μg/L Al(III) and 0.1-10 μg/L Be(II) and Ga(III). © 2011 Pleiades Publishing, Ltd. Source


Amelin V.G.,Vladimir State University | Nikolaev Yu.N.,Research Institute of Automobile Electronics and Electrical Equipment | Lomonosov I.A.,NPO Pribor | Aleshin N.S.,Vladimir State University
Journal of Analytical Chemistry | Year: 2010

A photocolorimeter was developed; this instrument made it possible to perform sample preparation, to preconcentrate test water components on indicator cellulose matrices, and to simultaneously measure their light absorption. A white light-emitting diode and a Digital color sensor S9706 photodiode, which simultaneously detected red (615 nm), green (540 nm), and blue (465 nm) regions of the spectrum, were used in the instrument. The applicability of the photocolorimeter to the determination of 36 components and characteristics of water was demonstrated. The photocolorimeter was proposed for the simultaneous determination of 20 components at a level of their maximum permissible concentrations for fishery water (RSD < 10%) for 10-15 min. © Pleiades Publishing, Ltd., 2010. Source


Kochelaev E.A.,NPO Pribor | Volchek A.O.,NPO Pribor | Elizarov B.A.,NPO Pribor | Sidorenko V.M.,Saint Petersburg State University
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2012

The results of numerical modelling of the angular fluorescence distribution of the individual particles of a bioaerosol are compared with experimental data obtained by a flowthrough-optical method when studying particles of the protein ovalbumin, as well as of Bacillus subtilis spores. It is shown that the experimental data agree on the whole with the results of the model computations. © 2012 Optical Society of America. Source

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