- Title
- Clean-up of the solid liquid extraction using certified reference material for soil TPH by GC-FID
- Creator
- Faustorilla, Maria Vilma; Dharmarajan, Rajarathnam; Chen, Zuliang; Naidu, Ravendra
- Relation
- Journal of Research Analytica Vol. 3, Issue 3, p. 81-87
- Publisher
- OLOGY
- Resource Type
- journal article
- Date
- 2017
- Description
- Accurate measurement of total petroleum hydrocarbon (TPH) is needed for contamination quantitation, risk assessment and site remediation. However, the analysis of petroleum in complex matrices such as soil involves extracting the hydrocarbons, not just of petrogenic (petroleum) origin but also of biogenic (biological) sources. Thus, a clean-up step is required after the solid liquid extraction of contaminated soil to remove matrix interferences. In this study, the clean-up efficiency and petroleum hydrocarbon recoveries were evaluated for dispersive solid phase extraction (dSPE) and traditional column SPE (cSPE) using a certified reference material for soil TPH. To determine petroleum hydrocarbons in the resulting extracts, gas chromatography-flame ionization detection was used. The results of the evaluation indicated that both cSPE and dSPE using silica or florisil as adsorbent provided optimal clean-up with good recovery of targeted hydrocarbons in the three commonly regulated fractions: > 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.
- Subject
- total petroleum hydrocarbons; solid phase extraction; soil; gas chromatography-flame ionization detection
- Identifier
- http://hdl.handle.net/1959.13/1397272
- Identifier
- uon:34231
- Identifier
- ISSN:2473-2230
- Language
- eng
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