Infrared spectroscopy

                          Bruker Tensor 37 FTIR



The Bruker Tensor 37 is a new FTIR purchased as part of a TGA/DSC-IR/MS system. It is avaialble for use when TGA/DSC measurements are not scheduled.  The instrument covers the spectral range from 6000 cm-1 to 400 cm-1; maximum resolution is 0.5 cm-1.  Fast and repetitive scanning is available on this instrument.  A large vapor-phase library (normally used with DSC/TGA-evolved gases) is available for use.

The system includes a Diffuse Reflectance attachment, and a Horizontal Attenuated Total Reflectance attachment.  The HATR has Ge flat-plate and trough cells, and a ZnSe flat-plate cell.  In general, researchers are required to provide their own sampling devices (liquid cells, salt-plates, pellet presses); a student-grade pellet press and a salt plate polishing kit are available in the lab.

The Tensor 37 instrument is located in 1238 Hach Hall.  Enquiries should be directed to Steve Veysey.  Phone 515-294-5805 (office).  Use "Booked" to reserve time.  Becasue the FTIR is shared with the TGA-DSC instrument, reservations must be approved.

FY'18 Rates

This instrument is used by students and other researchers.  Staff will provide training and some basic methods development assistance.  The hourly rates are listed below.  NOTE: There is a minimum billable increment of one-half hour.

User Category Instrument Charge Staff Assistance
ISU researchers $11.45 $30
Non-ISU academic users $17.18 $45
Non-academic users $34.35 $90


Introduction to FT-IR Spectroscopy

A detailed interactive program prepared by Bruker is loaded on the desktop of the FTIR and data processing computer.  The program contains sections on:

  • The electromagnetic spectrum
  • The interaction of radiation and matter
  • The working principles of an FTIR
  • Types of measurement
  • Sample preparation
  • Evaluation of spectra

Polishing salt plates (VIDEO)

    Tensor 37 Resources