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ABSTRACT:
SUBMITTER: Mayerhofer TG
PROVIDER: S-EPMC6899465 | biostudies-literature | 2019 Nov
REPOSITORIES: biostudies-literature
Mayerhöfer Thomas G TG Pipa Andrei V AV Popp Jürgen J
Chemphyschem : a European journal of chemical physics and physical chemistry 20191010 21
As derived by Max Planck in 1903 from dispersion theory, Beer's law has a fundamental limitation. The concentration dependence of absorbance can deviate from linearity, even in the absence of any interactions or instrumental nonlinearities. Integrated absorbance, not peak absorbance, depends linearly on concentration. The numerical integration of the absorbance leads to maximum deviations from linearity of less than 0.1 %. This deviation is a consequence of a sum rule that was derived from the K ...[more]