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| (A) defined as A=log(P initial/P) where P initial is the radiant power of light striking the sample on one side and P is the radiant power emerging from the other side. Also called optical density |
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| a graph of absorbance or transmittance of light versus wavelength, frequency, or wavenumber |
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| relates the absorbance (A) of a sample to its concentration (c), pathlength (b), and molar absorptivity (a), A=abc |
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| a graph showing the value of some property versus concentration of analyte. when the corresponding property of an unknown is measured, its concentration can be determined from the graph |
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| a cell with transparent walls used to hold samples for spectrophotometric measurements |
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| the factor used to multiply the initial concentration of reagent to find the diluted concentration |
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| the constant of proportionality in Beer's Law; A=abc (A is absorbance, a is molar absorptivity, b is pathlength, and c is the molarity) |
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| in a broad sense, any method using light to measure chemical concentrations |
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| (T), defined as T = P/P initial were P initial is the radiant power of light emerging from the other side of the sample |
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| distance between consecutive crests of a wave |
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