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apparatus is simpler, and probably less expensive to make than the fluorescence spectrometer, its
performance is also severely limited in comparison.

Figure 7.19
The Resolution of Convoluted Peaks
Reprinted with permission from K. Tenabe, M. Glick, B. Smith,
E, Volgtman and J. D. Winefordner, Anal. Chem., 59(8)(1987)1124,
Copyright 1987 American Chemical Society

There are distinct disadvantages to the use of the traditional dispersive type monochromators for
analyzing the fluorescent light produced from the sample. Either the separation must be arrested leaving
the sample stationary in the sample cell, and the fluorescence spectrum obtained by the usual stop-start
procedure, or the analyst must be content with measuring the fluorescent light at a single or narrow
band of wavelengths. Although it is difficult to select the excitation light by any means other than the
dispersion type monochromator, it certainly would be possible to utilize a diode array system to analyze
the fluorescent light. Thus the use of a dispersion monochromator to select the wavelength of the
excitation light, and a combination of the simple dispersion monochromator and the