Fourier-transform infrared (FT-IR) spectroscopy, deals with the vibration of molecules. Each functional group has its own distinct vibrational energy, which can be used to identify a molecule through the combination of all of the functional groups. When infrared radiation is passed through a sample, some radiation is absorbed by the sample and some is transmitted. The resulting signal at the detector is a spectrum representing a molecular ‘fingerprint’ of the sample. The usefulness of FT-IR is that the different chemical structures (molecules) produce different spectral fingerprints, which could function as a signature pattern.

Applications

• Environment: Analysing soil, monitoring air and water quality to address environmental and health concerns.
• Food : Rapid determination of the trans-fat content of manufactured food products using Attenuated Total Reflectance (U-ATR).
• Polymers and plastics: Quickly and definitely identify compounds such as compounded plastic, blends, fillers, paints, rubbers, coatings, resins and adhesives.

Specifications

• Wave number range: 350-8300 cm-1
• Resolution: 0.5 cm-1
• Wavelength accuracy: 0.1 cm-1
• Wavelength precision: 0.01 cm-1
• ATR: ATR with monolithic diamond crystal
• Detector: High intensity ceramic light source with hotspot stabilization
• Software: Spectrum IR

Instructions

• Any kind of solid sample, powdered samples and thin films can be analysed but avoid carcinogenic/corrosive/ infectious material/highly acidic or alkaline samples which may affect the optical components.
• Samples should be homogeneous and well packed in the sample holder so that it will not spill out and fall on the lens.

Sample Requirement

Solid : ~50 mg (powder)
Thin film : 1.0-1.5 cm
Solution : ~5 ml, Solvent must be specified for solution studies.

Instrument Status

Working

Analytical Charges