Zobrazeno 1 - 10
of 40
pro vyhledávání: '"N I Ershova"'
Publikováno v:
RUDN Journal of Agronomy and Animal Industries, Vol 0, Iss 2, Pp 28-35 (2010)
The study reveals diagnosis peculiarities for main Thrips spp. occurring during phytosanitary testing. Morphological diagnostic methods were compared with PCR-RFLP and direct sequencing. High reliability of molecular and genetic methods has been show
Externí odkaz:
https://doaj.org/article/a148032de731459eb0c3e498175f3b3f
Publikováno v:
Journal of Analytical Chemistry. 62:325-329
The optimum conditions of the complexation of cobalt with nitroso-R salt in the presence of and without ascorbic acid were found. Molar coefficients of chromaticity functions of the complexes were calculated, and it was demonstrated that cobalt(II) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65af32947f723bc747d5b1e6109054bc
https://doi.org/10.1134/s1061934807040053
https://doi.org/10.1134/s1061934807040053
Publikováno v:
Journal of Analytical Chemistry. 61:859-864
Optimal conditions for the complexation of iron(II, III) with 1-nitroso-2-naphthol-3,6-disulfonic acid in two buffer solutions and the reduction of iron(III) with ascorbic acid or hydroxylamine were found by spectrophotometry and chromaticity measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cffa37991f3502a503aef817b3b41f7
https://doi.org/10.1134/s1061934806090048
https://doi.org/10.1134/s1061934806090048
Autor:
V. N. Figurovskaya, Chin’ Tkhi Tuet Mai, V. M. Ivanov, Yu. A. Barbalat, N. I. Ershova, A. M. Mamedova
Publikováno v:
Journal of Analytical Chemistry. 61:571-575
Optical and colorimetric characteristics of 1-nitroso-2-naphthol-3,6-disulfonic acid (nitroso-R-salt) are studied in aqueous solutions at pH 4–10. Equations of calibration plots are obtained as the colorimetric functions of the concentration, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e8590a7b535f8ab1ddb8c1a8e55a18a
https://doi.org/10.1134/s1061934806060104
https://doi.org/10.1134/s1061934806060104
Publikováno v:
Journal of Analytical Chemistry. 60:629-632
The chromaticity characteristics were studied for the product of the reaction of Nessler’s reagent with ammonium ions and for solutions of molecular iodine. These characteristics were used for the determination of the concentration variation step i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0401189b2d450551686587a0589cbfd
https://doi.org/10.1007/s10809-005-0150-6
https://doi.org/10.1007/s10809-005-0150-6
Publikováno v:
Refractories and Industrial Ceramics. 46:15-20
Results of studies of tribological properties of hot-pressed silicon nitride-based ceramics for fabrication of rolling bearings are reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::034a59b6311752cf2cd845688e48d7a5
https://doi.org/10.1007/s11148-005-0039-9
https://doi.org/10.1007/s11148-005-0039-9
Publikováno v:
Journal of Analytical Chemistry. 59:541-545
The Chromotrope 2B reagent was used as an analytical reagent for the direct determination of nitrite ions by sorption chromaticity measurements, diffuse reflectance spectrometry, and solid-phase spectrophotometry. The silochrom C-120 silica gel and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8b5f3b16c2c3559eb8342ebe6303564
https://doi.org/10.1023/b:janc.0000030874.63843.b9
https://doi.org/10.1023/b:janc.0000030874.63843.b9
Publikováno v:
Refractories and Industrial Ceramics. 45:185-189
The development of rotor seals for gas-turbine engines is reported using Si3N4 – BN-based composite materials molded by hot-pressing technology. The mechanical and thermophysical properties of the newly-developed materials are determined and compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a974f6b084e53f9df9310eb899a7a9f
https://doi.org/10.1023/b:refr.0000036727.64065.7e
https://doi.org/10.1023/b:refr.0000036727.64065.7e
Publikováno v:
Journal of Analytical Chemistry. 59:314-318
Diffuse reflectance spectrometry in combination with chromaticity measurements was used for the determination of trace fluoride ions. The determination method was based on a decrease in the color intensity of the thorium complex of Arsenazo I. Silica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afa5bb2fb996267da2e760b98721cc30
https://doi.org/10.1023/b:janc.0000022780.39197.6c
https://doi.org/10.1023/b:janc.0000022780.39197.6c
Publikováno v:
Journal of Analytical Chemistry. 58:318-321
The immobilized reagent Arsenazo I was used for the direct determination of trace thorium by diffuse reflectance spectrometry and chromaticity measurements. Silica gels Silochrom C-120 and C18 were studied as supports. The optimal conditions of sorpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b569c2a3e57cf3b7616eb8db2c2c8f59
https://doi.org/10.1023/a:1023285328766
https://doi.org/10.1023/a:1023285328766