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FT-IR for RoHS
Fourier Transform Infrared Spectroscopy (FTIR) is a method of molecular vibrational analysis that enables rapid identification and quantitative screening for PBB and PBDE at > 2%
Benefits for RoHS
- Fastest and least expensive mode of analysis for PBB and PBDE screening
- Non destructive testing.
- Little or no sample preparation
- Easy to use with minimal operator training
Additional Information:
FTIR can be used for screening PBB and PDBE; while the limits of detection are >20,000 ppm (i.e. above the RoHS limits), flame retardants typically are added at a rate of 5-10% by weight, so FTIR can be used as a quick and non destructive qualitative screening, e.g. if FTIR results indicate levels >20,000 ppm, the sample fails RoHS compliance. If the results are inconclusive based upon the screening methods outlined above, then additional testing is required. The sample needs to be dissolved and analyzed with a more sensitive technique, either HPLC-UV, or GC/MS.
Fourier Transform Infrared Spectroscopy (FTIR) is a method of molecular vibrational analysis. The sample in question is subjected to infrared radiation, as a result of which they undergo vibrations such as stretching, bending, rotating etc. These vibrations cause a change in dipole of the molecule which is tracked by the instrument. The frequency of these vibrations depend on the nature of the molecular bonds and the environment generating a spectrum that is unique to the material and indicative of its chemical structure. Attenuated Total Reflection (ATR) is a quick method for sample analysis by FTIR that eliminates any need for sample preparation and facilitates analysis by non skilled personnel.
Thermo Fisher Scientific product offerings:
Nicolet 380 with Smart Diamond ATR
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