A method for identifying brominated flame retardants in a polymer sample.
An infrared spectrometry scan of the polymer sample is obtained. Using a
first set of parameters, the obtained IR scan is compared to a first
database, and a first hit score is calculated. Based on the results of
the first hit score, a second database is selected from among a number of
databases, and the obtained infrared spectrometry scan is compared to the
various scans contained in the selected database using a parameter set
that corresponds to the selected database, and a second hit score is
calculated. Using the second hit score, another set of parameters is
selected, and the obtained infrared spectrometry scan is compared to the
various scans contained in the selected third database using this
additional parameter set, and a third hit score is calculated. Based on
the second and third hit scores, the identity of the brominated flame
retardant in the polymer sample is determined with a high degree of
accuracy.