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Solid-phase extraction for oil and grease analysis

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Conventional oil and grease analysis that involves liquid-liquid extraction (LLE) has many disadvantages, which include poor reproducibility, emulsion formation, large solvent usage, and loss of volatile and semivolatile compounds during evaporation of the solvent. Therefore, an alternative method using octadecyl siloxane (C18) solid-phase extraction (SPE) columns was developed to overcome these analytical problems. The amount of the solvent was reduced and more reproducible results were obtained using this C18 SPE method. The time required for analysis is approximately the same for both methods. Higher recovery of semivolatile compounds also was obtained. The proposed C18 SPE method was also found to be comparable to those obtained from commercially available columns.


Document Type: Research Article


Publication date: May 1, 1997

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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