The molar extinction coefficient is about 13, 000 cm " 1 M " 1 and its overall effective fluorescence is about 1 % that of fluorescein.
22.
Proflavine absorbs strongly in the blue region at 445 nm ( in water at pH 7 ) with molar extinction coefficient of " c . " 40, 000
23.
In an optical context, the absorption spectrum is typically quantified by the extinction coefficient, and the extinction and index coefficients are quantitatively related through the Kramers-Kronig relation.
24.
At sea level, the Rayleigh atmosphere has an extinction coefficient of approximately 13.2 ?10 " 6 m " 1 at a wavelength of 520 nm.
25.
If a significant amount of the light passed through the sample contains wavelengths that have much lower extinction coefficients than the nominal one, the instrument will report an incorrectly low absorbance.
26.
Opacity in air pollution work refers to the percentage of light blocked instead of the attenuation coefficient ( aka extinction coefficient ) and varies from 0 % light blocked to 100 % light blocked:
27.
Kornberg and Bernard L . Horecker used the Beckman DU spectrophotometer for enzyme assays measuring NADH and NADPH . They determined their extinction coefficients, establishing a basis for quantitative measurements in reactions involving nucleotides.
28.
Has anyone got suggestions on what to use and where to find the molar extinction coefficient of this substance's complex with copper ?-( talk ) 21 : 08, July 14, 2005 ( UTC)
29.
Although its molar absorptivity ( extinction coefficient ) is relatively low, PI exhibits a sufficiently large Stokes shift to allow simultaneous detection of nuclear DNA and fluorescein-labeled antibodies, provided the proper optical filters are used.
30.
The LP-80 calculates LAI by means of measuring the difference between light levels above the canopy and at ground level, and factoring in the leaf angle distribution, solar zenith angle, and plant extinction coefficient.
