Beer’s Law and the Optimum Transmittance in Absorption Measurements
- 1 September 1963
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 2 (9) , 937-945
- https://doi.org/10.1364/ao.2.000937
Abstract
Beer’s law is used widely in the determination of cross sections and of unknown solution concentrations in the form τ = 10−A, where τ is the transmittance and A is the absorbance. By the criterion of minimum experimental error, the best value of the transmittance depends upon numerous parameters and varies between 2% and 90%. This paper considers the influence of the source, background, noise, counting time, and other parameters on the optimum transmittance.Keywords
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