In chemistry, the molar absorption coefficient or molar attenuation coefficient (ε) is a measurement of how strongly a chemical species absorbs, and thereby...

Extinction coefficient refers to several different measures of the absorption of light in a medium: Attenuation coefficient, sometimes called "extinction...

"absorption coefficient")[citation needed] The Molar attenuation coefficient (also called "molar absorptivity"), which is the absorption coefficient divided...

related concept is molar absorptivity. They are quantitatively related by (mass attenuation coefficient) × (molar mass) = (molar absorptivity). Tables of photon...

the attenuation coefficient. The attenuation coefficient of a volume is the sum of absorption coefficient and scattering coefficients: μ = μ a + μ s ...

cross-section is closely related to molar absorptivity ε {\displaystyle \varepsilon } and mass absorption coefficient. σ = ln ⁡ ( 10 ) × 10 3 N A × ε {\displaystyle...

the excitation and emission spectra (usually one peak each). Molar absorption coefficient (in mol−1cm−1): links the quantity of absorbed light, at a given...

electric field changes the molar absorption coefficient of the sample, which can be measured using traditional absorption or emission spectroscopic methods...

Discussed below are the absorption properties of the most important chromophores in tissue. The molar extinction coefficient ( ε {\displaystyle \varepsilon...

The absorption peaks of chlorophyll a are at 465 nm and 665 nm. Chlorophyll a fluoresces at 673 nm (maximum) and 726 nm. The peak molar absorption coefficient...

affect the absorption spectrum of an organic compound. Tyrosine, for example, increases in absorption maxima and molar extinction coefficient when pH increases...

the absorbance; ε {\displaystyle \varepsilon } is the molar attenuation coefficient or absorptivity of the attenuating species; ℓ {\displaystyle \ell }...

laws because scattering and absorption have the same effect. Thus a scattering coefficient μs and an absorption coefficient μa can be combined into a total...

strain) divided by the change in temperature is called the material's coefficient of linear thermal expansion and generally varies with temperature. If...

transmission coefficient, which is the ratio of the transmitted to incident electric field. Internal transmittance refers to energy loss by absorption, whereas...

wave propagates through the material.: 128  It is related to the absorption coefficient, α abs {\displaystyle \alpha _{\text{abs}}} , through:: 41  α abs...

\varepsilon _{\mathrm {R} }} are the molar extinction coefficients for LCP and RCP light, C {\displaystyle C} is the molar concentration, l {\displaystyle...

attenuation coefficient; see attenuation coefficient for details; molar absorption coefficient or molar extinction coefficient, also called molar absorptivity, is...

the absorption spectra of two species (whether by using molar absorptivity for the representation, or by using absorbance and keeping the same molar concentration...

is another term for the mass attenuation coefficient (or, depending on context, mass absorption coefficient, the difference is described here) κ ν {\displaystyle...

ammonia per litre of solution, and has a molarity of approximately 18 mol/L. At higher temperatures, the molarity of the saturated solution decreases and...

c of the solute (the solvent is considered non-absorbing). The “Absorption Coëfficient” that Beer defined is actually the transmittance (or transmission...

\left({\frac {1}{\tau }}-{\frac {1}{\tau _{0}}}\right)} Alternatively, the molar absorptivity, ε, and analyte concentration, C, can be determined from the ratio...

largely experimental results. They can be used to solve for the diffusion coefficient, D. Fick's first law can be used to derive his second law which in turn...

the path length), ℓ. The absorption coefficient can, in turn, be written as a product of either a molar absorptivity of the absorber, ε, and the concentration...

elasticity in economics electromotive force in chemistry, the molar extinction coefficient of a chromophore in mathematics, a surreal number that is bigger...

extensions, for example the Ghose filter: Partition coefficient log P in −0.4 to +5.6 range Molar refractivity from 40 to 130 Molecular weight from 180...

1016/0003-9861(59)90090-6. PMID 13650640. Collier HB (1973). "Letter: A note on the molar absorptivity of reduced Ellman's reagent, 3-carboxylato-4-nitrothiophenolate"....

adsorbate on the surface of the adsorbent. This process differs from absorption, in which a fluid (the absorbate) is dissolved by or permeates a liquid...

which A is the absorbance measured by the instrument, ε is the molar absorption coefficient of the sample, l is the pathlength of the light beam through...