https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Clean-up of the solid liquid extraction using certified reference material for soil TPH by GC-FID https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34231 C10 – C16, > C16 – C34, > C34 – C40. This clean-up step is important as this will affect subsequent sample preparation steps to separate TPH into its different fractions and individual components for assessing the level of contamination and the effectiveness of remediation for decision making based on risk assessment.]]> Wed 20 Feb 2019 15:55:26 AEDT ]]> Effect of surface-tailored biocompatible organoclay on the bioavailability and mineralization of polycyclic aromatic hydrocarbons in long-term contaminated soil https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:35640 Tue 24 Sep 2019 16:19:55 AEST ]]> Determination of total petroleum hydrocarbons in Australian groundwater through the improvised gas chromatography-flame ionization detection technique https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34100 0.999 with enhanced limits of detection and limits of quantification values. The method was applied to real samples for routine environmental monitoring of TPHs in an Australian contaminated site characterized by refueling station. Analysis of groundwater samples in the area showed a wide range of TPH concentrations as follows: 66–1,546,000 (C₁₀–C₁₄), 216–22,762 (C₁₅–C₂₈) and 105–2,103 (C₂₉–C₃₆) μg/L. This method has detected trace levels, thereby measuring a wider concentration range of TPHs. These more accurate measurements can lead to the appropriate application of risk assessments and remediation techniques.]]> Thu 07 Feb 2019 14:26:26 AEDT ]]>