Method for determining polycyclic aromatic hydrocarbon contaminant concentration
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United States of America Patent
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Sep 15, 2015
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Oct 21, 2010
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Nov 2, 2009
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Abstract
Method for determining polycyclic aromatic hydrocarbon (PAH) concentration in a solid state sample. The method includes exposing the sample to diffuse reflectance infrared spectroscopy, recording at least one spectroscopic parameter of infrared diffuse reflection of the sample, which is a signal obtained at one or more frequencies within a range of frequencies (+/−10 cm−1) selected from the group consisting of 3000-3100 cm−1, 740, 777, 814, 842, 1430, 1510, 1600, 4055-4056, 4642-4646, 5924, and 5951-5953 cm−1, and performing data analysis by correlating the at least one spectroscopic parameter with variables of a trained multivariate calibration model related to PAH concentrations, thereby determining PAH concentrations in the sample.
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