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Analytical procedures are usually based on the assumption that random errors are inevitable and must be accommodated by overdetermining the value sought. For example, if one wishes to determine the absorptivity of a compound at a particular frequency he will generally measure the absorbance
for several concentrations and determine the best straight line (after demonstrating Beer's law to be valid for the system). One absorbance and concentration would be sufficient except for the experimental uncertainties.
Polytechnic Institute of Brooklyn, Brooklyn, N. Y.
Publication date: December 1, 1959
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The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)