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Beer Lambert Law Definition
Beer‐Lambert law or Beer‐Lambert‐Bouguer law or Lambert‐Beer law. A combination of Beer's law (def. Gta 4 per pc. 1) and Lambert's law; put into modern terms, it states that the absorbance. Access to the complete content on Oxford Reference requires a subscription or purchase. Public users are able to search the site and view. The Beer-Lambert Law, the molar extinction coefficient or molar absorptivity,, is a constant for a given transition metal ion, and the path length (l) is a constant as long as the same test tube or cuvette is used to make each absorbance measurement.
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Beer-Lam·bert law(![]() ![]()
the absorbance of light is directly proportional to the thickness of the media through which the light is being transmitted multiplied by the concentration of absorbing chromophore; that is, A = εbc where A is the absorbance, ε is the molar extinction coefficient, b is the thickness of the solution, and c is the concentration.
Beer’s lawA law stating that the concentration of an analyte is directly proportional to the amount of light absorbed, or inversely proportional to the logarithm of the transmitted light.Beer’s law A = abc = log(100/%T) 2 - log %T where: A = absorbance a = absorptivity b = light path of the solution in cm c = concentration of the substance of interest %T = per cent transmittance—the ratio of transmitted light to incident light Beer,August, German physicist, 1825-1863.
Beer-Lambert law - the absorbance of light is directly proportional to the thickness of the ligand through which the light is being transmitted multiplied by the concentration of absorbing chromophore.
Beer law - the intensity of a color or of a light ray is inversely proportional to the depth of liquid through which it is transmitted.
Lambert,Johann Heinrich, German mathematician and physicist, 1728-1777.
Lambert cosine law - mathematical measure of the intensity of radiation.
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