National Centre for Nano-structured Materials (NCNSM)

Optical Instruments

Instrument:

Fourier Transform Infrared Spectroscopy (FTIR)

Make and model etc.:

Perkin Elmer
Spectrum 100 FTIR spectrometer

Room number:

A017

Responsible person/s:

James Ramontja

Operator required?

No

Specifications:

Optical Performance

• Wavelength range 8300-350 cm-1 Optimized, proprietary KBr beamsplitter
• 7800-225 cm-1 CsI beamsplitter
• Spectral Resolution 0.4 cm-1 for the 3028 cm-1 band in Methane
• Wavelength precision 0.008 cm-1 at 2,000 cm-1
• Wavelength accuracy 0.02 cm-1 at 2,000 cm-1

Signal-to-noise*

• 1 minute measurement           174,800/1 RMS                  2.5 x 10-6 Abs
• 34,000/1 peak-peak           1.2 x 10-5 Abs
• 5 second measurement          49,900/1 RMS                    0.9 x 10-5 Abs
• 10,200/1 peak-peak            4.2 x 10-5 Abs

* (4 cm-1 spectral resolution, 16 background accumulations, room temperature, KBr optics, DTGS detector)