Publications by authors named "N A Petrochenkova"
Luminescent amine sensor based on europium(III) chelate.
Spectrochim Acta A Mol Biomol Spectrosc
July 2018
Article Synopsis
- * The study suggests that the mechanism behind this enhancement involves the interaction of methylamine with a water molecule bound to the Eu(III) complex, leading to changes in its structure.
- * Consequently, the structural changes reduce the impact of OH-vibrations on the luminescence, resulting in increased intensity of the emitted light.
Europium(III) tris-dibenzoylmethanate as an efficient chemosensor for detection of ammonia.
Spectrochim Acta A Mol Biomol Spectrosc
February 2016
The effect of ammonia vapor on luminescence of Eu(III) tris-dibenzoylmethanate immobilized in various matrices has been investigated. It has been revealed that interaction of Eu(III) tris-dibenzoylmethanate with analyte vapor results in increase of the intensity of Eu(III) luminescence. The mechanism of the effect of ammonia vapors on intensification of the Eu(III) luminescence has been suggested using the data of IR spectroscopy, X-ray diffraction analysis and quantum chemistry calculations.
View Article and Find Full Text PDFAim: To investigate the spectrum of gram-negative agents causing acute and recurrent cystitis in outpatients and sensitivity of uropathogenic E. coli to antibacterial drugs; to compare drug resistance of uropathogenic E. coli isolated in Russia and other countries.
View Article and Find Full Text PDFThe clinical efficacy and tolerance of cefpiramide were studied in 34 patients at the age of 15 to 79 years with infectious destructive lesions in the lungs. The clinical efficacy amounted to 88.2 per cent.
View Article and Find Full Text PDF