Infrared Reflection Absorption Spectroscopy (IRRAS) is a powerful method to assess the chemical composition and orientation of molecules at an interface.
The simple construction of the PMI 550 means there is no need to fiddle with mirrors and prisms in order to get the IR-Beam to the interface.
A goniometer carries a spectrometer on one arm and a detector on the other, with simple screw adjustment allowing rapid alignment of the IR-Beam.
Integrated software allows mouse click acquisition of spectra at user-defined surface pressures.
The KSV Minitrough System is the recommended trough for use with this instrument.