A simple mixer/jet cell for raman spectroscopic studies

Abstract

The design of the mixer is presented. The exit port of the mixer is constructed so as to allow the flowing sample solution to form a continuous stream in air in the scattering volume, which eliminates quartz scattering. The mixer with the upper micropipet and the lower micropipet are each mounted on X-Y-Z translators, which allows us to optimize the stability of the jet. Generally, we find that a gap of approximately 2 mm is appropriate. The iris diaphragm is also mounted on an X-Y-Z positioner and serves as the laser beam waist controller. The translation stage on which the cell is mounted allows X, Y, and Z movements relative to the entrance slit of the spectrometer