Three-dimensional fluorescence spectra - A resolvable problem also with older instruments

The possibility of obtaining fluorescence spectra in the form of three-dime nsional graphs after modification of an old spectral fluorimeter is describ ed. A Perkin-Elmer model 3000 instrument was innovated to provide, through a hardware interface, the direct output of measured spectral quantities int o a computer, where they are worked up, using a special program Spektro, in the shape of three-dimensional graphs or spectral contour maps. By this mo dification, the instruments achieve several parameters of the latest superi or spectrofluorimeters.