Analysis of semivolatile organic compounds by headspace gas chromatography

Ghaoui, L.

doi:10.1016/0021-9673(93)80103-f

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Because of the hazardous nature of sewage, and because organic contaminants at high and low concentration levels exist simultaneously in industrial effluents, the clean up and enrichment step for water samples prior to instrumental analysis is necessary. In past decades, many advanced and important preconcentration techniques, such as purge-and-trap (12), headspace (15), supercritical fluid extraction (2,9), and solidphase microextraction (16), have been applied for the enrichment of organic compounds in aqueous samples. However, special and expensive devices are required in the preconcentration process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Unknown Organic Pollutants in Sewage by Solid-Phase Extraction Combined with Gas Chromatography-Mass Spectrometry

Gao

Zhao

Kong

et al. 2004

Journal of Chromatographic Science

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A rapid, simple, and reliable method of solid-phase extraction (SPE) combined with gas chromatography (GC)-mass spectrometry (MS) is developed for the analysis of a wide range of polarity of unknown organic pollutants in sewage. Wastewater samples are extracted by passing them through disposable C(18) cartridges, and the extracts are then analyzed by GC-MS. Different SPE parameters for ten organic compounds in the list of priority pollutants suggested by the China Environmental Protection Agency (EPA) are studied, and their breakthrough volumes are determined. Extraction recoveries for the tested compounds are greater than 60%, except the recovery of 1,2-dichloroethane is 48%. The relative standard deviations are less than 7.8% (n = 3). The developed approach is successfully applied for the identification of organic components in a sewage sample. Over 220 organic pollutants are identified, with 5 of these present in the list of priority pollutants suggested by the U.S. EPA and 4 from the list by the China EPA.

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