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Browsing by Subject "GC/MS"

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    Item type:Article, Access status: Open Access ,
    Determination of acidic pharmaceuticals in municipal wastewater by using solid-phase extraction followed by gas chromatography-mass spectrometry
    (2012) Nosek, Katarzyna; Styszko-Grochowiak, Katarzyna; Gołaś, Janusz
    The appearance of pharmaceutical compounds and the need of their determination in an aquatic environment has become a subject of growing concern over recent years. This paper describes an application of a quantitative analytical method for the determination of selected nonsteroidal anti-inflammatory drugs: ketoprofen, naproxen, diclofenac and other newly emerging contaminants - triclosan and bisphenol A in influent and effluent from a wastewater treatment plant located in Kraków (Poland). Samples were isolated and preconcentrated by using the solid - phase extraction (SPE) technique, then eluat was derivatized with N-methy-N-(trimethylsilyl)-trifluoroacetamide (MSTFA) and analyzed by gas chromatography coupled with mass spectrometry. All of tested pharmaceuticals were present in the wastewater treatment plant effluent and influent at concentration ppt to ppb.