Total Petroleum Hydrocarbon Concentration Prediction in Soils Using Diffuse Reflectance Infrared Spectroscopy

SYNOPSIS

This paper provides the theoretic background for the measurement of TPH using MIR with RemScan.

• The potential as a rapid and accurate non-destructive method to determine TPH concentrations is proposed.
• The most sensitive parts of the IR spectra were investigated and identified.
• Provides background for selection of MIR DRIFT technique.
• Spectra are provided for a range of concentrations of TPH in a range of different soil types.
• PLS modelling confirms the viability of accurate TPH measurements in soil with little interferences from Soil Organic Matter (SOM) or carbonate.