SAMPLE SWITCHING INTERFACE FOR FOURIER-TRANSFORM INFRARED-SPECTROSCOPY OF ELECTRODE SURFACES

A simple electronic system that enables an FTIR spectrometer to control sample state parameters through its sample switching ability is described. Up to sixteen different logic states can be assigned through the software, automating the applied FTIR experiment. The operation of the device is demonstrated for the collection of subtractively normalized interfacial Fourier transform infrared spectroscopy (SNIFTIRS) using a custom designed potentiostat. One of the most important advantages of this interface is its flexibility towards various timing/sampling schemes found for different in situ spectroelectrochemical experiments. The suitability of this device for other than electrochemical switching applications is also described.