Results 221 to 230 of about 3,102,766 (298)

The extinction coefficient of multicomponent aerosols

Atmospheric Environment (1967), 1982
The general problem of visibility reduction by aerosols is explored in order to identify the conditions necessary for determination of the roles of individual chemical species. The particle extinction coefficient depends on the distribution of chemical species with respect to particle size and from particle to particle within each size range.
Ouimette, James R., Flagan, Richard C.
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[Extinction coefficient of thyroglobulin].

Biokhimiia (Moscow, Russia), 1980
The extinction coefficient at 280 nm of the solution (pH 7,2-7,4) of thyroglobulin from normal thyroid and nodular euthyroid goiter was measured with the values of 0,6-0,7 to 0,9 ml.mg-1.cm-1. The value of E1%280 as function of the iodoamino acid content depends on the morphological state of the thyroid gland.
E E, Gussakovskiĭ, A A, Abramov, T A, Babaev, T G, Gulamov, O V, Gorina   +4 more
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Extinction coefficient of polyolefin foams

Journal of Polymer Science Part B: Polymer Physics, 2005
AbstractThe extinction coefficient of a collection of polyolefin foams was investigated experimentally and theoretically. Transmittance spectra were measured with Fourier transform infrared spectroscopy (FTIR) for samples of various thicknesses and different chemical compositions, densities, colors and structural characteristics.
R. A. Campo‐Arnáiz, M. A. Rodríguez‐Pérez, B. Calvo, J. A. de Saja   +3 more
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A Study of the Extinction Coefficient for Ferric and Ceric Ions

Radiation Research, 1960
Ferric Species Standard ferric sulfate solutions were prepared by dissolving spectrographically pure iron rod (Johnson Matthey) in sulfuric acid and oxidizing with hydrogen peroxide. The decadic molar extinction coefficient of ferric ion in 0.8 N sulfuric acid at 24.9?C was found to be 2199 ? 4 liters mole-' cm-l at 304 m,/. The effect of a decrease of
C M, HENDERSON, N, MILLER
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Extinction coefficients for the benzyl radical

Chemical Physics Letters, 1980
The 12B2 → 3 2B2 transition in the absorption spectrum of the benzyl radical has been recorded in the gas phase together with a new band at shorter wavelengths, probably the first Rydberg band of the radical. The radicals formed in the flash photolysis of benzyl chloride and benzyl bromide and subsequent reactions have been investigated.
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Theoretical approximations and experimental extinction coefficients of biopharmaceuticals

Analytical and Bioanalytical Chemistry, 2015
UV spectrophotometric measurement is a widely accepted and standardized routine analysis for quantitation of highly purified proteins; however, the reliability of the results strictly depends on the accuracy of the employed extinction coefficients.
Mariana P, Miranda-Hernández, Elba R, Valle-González, David, Ferreira-Gómez, Néstor O, Pérez, Luis F, Flores-Ortiz, Emilio, Medina-Rivero   +5 more
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Improving the Accuracy of Aerosol Extinction Coefficient Inversion

Оптика и спектроскопия, 2014
This paper considers the relationship between the accuracy of aerosol extinction inversion and the boundary value, and derives a theoretical high-accuracy aerosol extinction coefficient inversion. Aerosol extinction coefficient profiles depend on the boundary value.
Nianwen Cao, Fengkai Yang, Cunxiong Zhu
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Approximate calculation of extinction coefficient

Journal of Physics D: Applied Physics, 1990
An approximate expression for estimating the extinction coefficient of small particles is proposed from the theoretical analysis of extinction values calculated by Mie theory for light scattering by small particles. It is found that the expression is applicable to particles with a dimensionless particle size parameter x between 0 and 100 and refractive
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Extinction Coefficient at Zero Concentration

Nature, 1962
THE use of extinction coefficients to characterize substances depends on the validity of Lambert–Beer's law. The following shows that a constant-extinction coefficient at zero concentration—which is the tangent to the extinction–concentration curve at zero concentration, may be calculated even if Lambert–Beer's law is not followed.
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Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals

, 2003
W. Yu, L. Qu, Wenzhuo Guo, Xiaogang Peng
semanticscholar   +1 more source