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METHOD FOR DETERMINING THE MASS CONTENT OF PETROLEUM PRODUCTS IN SOILS BY MEANS OF INFRARED SPECTROMETRY
METHOD FOR DETERMINING THE MASS CONTENT OF PETROLEUM PRODUCTS IN SOILS BY MEANS OF INFRARED SPECTROMETRY
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机译:用红外光谱法测定土壤中石油产品质量含量的方法
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摘要
FIELD: testing.;SUBSTANCE: invention relates to the field of environmental pollution research and pertains to a method for determining the mass content of petroleum products in soils by means of infrared spectrometry. The method includes extraction of a soil sample, purification of the extract on aluminium oxide, measurement of the optical density of the extract by an IR spectrometer in a cuvette transparent at a frequency of 2,924 cm-1. In the course of measurements, the soil sample with a weight of 10 g is crushed, extracted with freon 113 twice in the volume of 20 ml, then dried for 10 to 15 hours at a temperature of 20 to 25°C, ground, and extracted again with 20 ml of freon 113. The concentration values measured in all extracts are summed.;EFFECT: provided possibility of determining the content of petroleum products in soils with natural humidity and increase in the reliability of the final result.;1 cl, 1 tbl
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