Rapid Assessment of Petroleum-Contaminated Soils with Infrared Spectroscopy published in Geoderma 289 (2017) 150-160
This paper in Geoderma explored methods for rapid detection of petroleum contamination in soils and demonstrated that infrared spectrometry can be utilized. In the laboratory experiment where soil samples were spiked with different concentrations of petroleum products, it was found that the portable mid-infrared spectrometer (RemScan) collected similar spectra as the laboratory benchtop mid-infrared spectrometer.
Therefore, the portable MIR spectrometer could be used as a reliable soil sensor. The important infrared regions to quantify hydrocarbon contamination are near 2990–2810 cm−1 (MIR), and 2300–2340 nm (NIR). The clay and carbon contents were found to decrease the TRH spectra signal. The laboratory contaminated soil study showed that throughout the study period of 11 weeks, hydrocarbon losses due to volatilisation and degradation were negligible compared to other factors, such as soil texture, organic carbon content and types of contaminants.