Method for identifying drainage oil based on finger-print technology
A technology of gutter oil and map, applied in color/spectral characteristic measurement, measuring device, material analysis through optical means, etc., can solve complex and inaccurate problems, and achieve the effect of high identification accuracy and high practical value
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[0020] Implementation example: first take the oil to be tested with a straw, drop 1 drop onto a potassium bromide tablet, use infrared spectroscopy (IR) to measure the infrared spectrum absorption spectrum, and compare the spectrum with the qualified oil and catering waste oil spectrum in the fingerprint database. By comparison, if it is basically consistent with the profile ratio of a certain spectrum in the spectral library, it can be preliminarily judged as the oil product. However, most qualified edible oils have a high similarity with the infrared spectral profiles of gutter oil, and it is difficult to distinguish them only by the spectral profile. In order to further investigate the difference in the infrared spectrum of oil products, compare the relative intensity of specific infrared absorption peaks, and select the common absorption peak in each oil——1745cm -1 The absorption peak, that is, the stretching vibration peak absorption intensity of the carbonyl group (C=O) i...
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