Vol. 17, issue 12, article # 14

pdf Poplavskii Yu. A., Serdyukov V. I., Sinitsa L. N., Shcherbakov A. P. Spectrophotometric analysis of hydrocarbons in the soil. // Atmospheric and oceanic optics. 2004. V. 17. No. 12. P. 948-951.
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For measurements using liquid extraction of hydrocarbons from the soil, a laboratory model of a broadband spectrophotometric analyzer has been constructed based on SA-2 spectrophotometric analyzer of solutions, developed at the Institute of Atmospheric Optics SB RAS. The hydrocarbon absorption spectrum was recorded in several regions: 3-4 mkm region of the fundamental transitions, where hydrocarbon absorption spectra are characterized by large values of the absorption coefficient, and in the 1.8-2.5 mkm and 0.8-1.6 mkm overtone regions where absorption by different hydrocarbon groups is well separated. The wide spectral region, high sensitivity, and efficiency of the spectrophotometer allowed covering a wide dynamic range of measured concentrations (3-4 orders of magnitude) and providing for sufficient selectivity in the hydrocarbon type content and fraction composition.