Author(s): AguilarArteaga K, Rodriguez JA, Miranda JM, Medina J, Barrado E
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Abstract A series of supports functionalized with different alkyl chains and covered with magnetite were synthesized, characterized and applied in the sample pre-concentration of four non-steroidal anti-inflammatory drugs (acetaminophen, naproxen, diclofenac and ibuprofen) contained in wastewater samples. The general methodology involved magnetic solid phase dispersion followed by the analysis by high-performance liquid chromatography with ultraviolet detection. The magnetic supports were initially dispersed in the samples with the aid of Triton X-100, then supports were magnetically isolated and the analytes were eluted with methanol. Finally the extract was injected into the HPLC system. The highest recovery percentage (>90\%) was obtained with the support containing octyl chains (C8) at pH 3. The lowest limits of detection achieved ranged within 1-2microgL(-1) with repeatability (expressed as RSD) below 5\% in all cases. The method was applied in the analysis of wastewater samples.
This article was published in Talanta
and referenced in Pharmaceutica Analytica Acta