Abstract
It is demonstrated that a short-wave near-infrared analyzer equipped with a small number of discrete infrared-emitting diode sources can provide the spectral information required to discriminate organic solvents. Discrimination models were developed and validated for a large variety of compounds with the use of as few as six data points, and were, in most cases, quite successful. Additionally, the effect of added impurities on the discrimination model for methanol was investigated. As expected, the model developed for pure methanol was relatively insensitive to the presence of impurities at levels below about 5%.
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