The Water and Food Analytical Laboratory, at the Johnson Space Center is developing an alternative to EPA Method 625 for analyzing semivolatile organic compounds in water. The current EPA method uses liquid-liquid extraction. The alternative method being developed differs in the sample preparation phase by replacing gravity-dependent liquid-liquid extraction with solid phase extraction (SPE). The ultimate goal is to incorporate the optimum SPE conditions into an automated sample preparation process. The method shows promise with regard to anticipated polar compounds. Fourteen SPE resins and nine elution solvents were compared. For typical analytes encountered by our laboratory, a styrene-divinylbenzene SPE resin and an elution solvent mixture of methylene chloride and ethyl ether were found to give the highest extraction recoveries. A study is in progress to remove water from the extracts before GC/MS analysis.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Solid Phase Extraction of Polar Compounds in Water


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Conference On Environmental Systems ; 1997



    Erscheinungsdatum :

    01.07.1997




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Detection of Cadmium(II) in Water Using Colorimetric-Solid Phase Extraction

    Shih, Chien-Ju / Porter, Marc D. / Dias, Neil C. | SAE Technical Papers | 2005


    Detection of Cadmium(ll) in Water Using Colorimetric-Solid Phase Extraction

    Shih, C.-J. / Dias, N. C. / Porter, M. D. et al. | British Library Conference Proceedings | 2005



    Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements

    Ethridge, E. / Kaukler, W. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2009


    Trace Level Determination of Lead(II) in Water by Colorimetric-Solid Phase Extraction

    Fritz, James S. / Porter, Marc D. / Dias, Neil C. | SAE Technical Papers | 2005