Modular fluorimeter with temperature control

The client required a sensitive spectrofluorimeter (SNR > 6000:1) that, in addition to emission, excitation and excitation-emission spectra, can also measure absorption and perform reference measurements of excitation beam intensity. The instrument had to have an excitation range of at least 200-750 nm and a photomultiplier with a sensitivity of at least 230-870 nm had to be used for detection. A thermostatic cuvette holder had to be included.

For this task, we chose the FS5 spectrofluorimeter with a thermostatic cuvette holder, 150 W ozone-generating Xe lamp (output from 200 nm) and a temperature-stabilized photomultiplier optimized for a detection range of 200-870 nm. The high sensitivity (SNR >6000:1), fast acquisition of experimental data and ease of operation make the FS5 a very efficient instrument for luminescence spectroscopy. In steady state mode, it provides absorption spectra and kinetics spectra in addition to excitation and emission spectra, emission maps and synchrotron spectra. It has a built-in reference detector for checking the excitation intensity.