Infrared Spectroscopy (FTIR)

Infrared Spectroscopy (FTIR) is an analytical technique that relies on light in the infrared portion of the electromagnetic spectrum to characterize materials. FTIR is generally a qualitative tool that is particularly beneficial in identifying the presence of specific functional groups.

Infrared Spectroscopy (FTIR) is an analytical technique that relies on light in the infrared portion of the electromagnetic spectrum to characterize materials.  FTIR is generally a qualitative tool that is particularly beneficial in identifying the presence of specific functional groups.

Method

Cornerstone Analytical uses its internal procedure for FTIR analysis or can use nationally accepted methods such as USP <197> Spectrophotometric Identification Tests.  Click here to view USP’s general chapter  <197>.

Preparation

FTIR preparation options available include ATR (Attenuated Total Reflectance) cell, KBr pellet and as a film between sodium chloride windows.

Analysis

Analysis proceeds by scanning the sample over the infrared region, generally 4000 to 700 cm^-1.  Once the spectrum has been obtained, the technician may review it for the presence and location of peaks, or it may be compared to a spectrum of a known compound.  Either way, the spectrum is used to confirm the identity of the sample.

Reporting

Cornerstone Analytical provides copies of the scans along with a copy of the laboratory report.  A library match report is also included along with the scan.

Contact Us

Contact us today to discuss our FTIR analysis service.