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Biophysical Journal 26: 73-83 (1979)
© 1979 the Biophysical Society

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A systems-theory approach to the analysis of multiexponential fluorescence decay.

J Eisenfeld and C C Ford

ABSTRACT

A mathematical model of the fluorescence decay experiment based on linear systems theory is presented. The model suggests an experimental technique that increases the probability of correctly determining the decay constants of a multicomponent system. The use of moment methods for data analysis improves accuracy by combining information obtained from several discrete experiments. Examples are presented to show that the analysis of a three component system composed of known standards is improved as the number of experimental determinations is increased from one to four. The discrete measurements are made by changing the excitation and emission wavelengths.






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Copyright © 1979 by the Biophysical Society.