期刊
TALANTA
卷 80, 期 3, 页码 1152-1157出版社
ELSEVIER
DOI: 10.1016/j.talanta.2009.08.042
关键词
Magnetic-MSPD; NSAIDs; HPLC; Magnetic separation
资金
- CONACyT [61310]
- Consejeria de Educacion y Cultura de la junta de Castilla y Leon [VA029A07]
- Direccion Xeral de Investigacion, Desenvolvemento e Innovacion (Xunta de Galicia)
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 1-2 mu g L-1 with repeatability (expressed as RSD) below 5% in all cases. The method was applied in the analysis of wastewater samples. (C) 2009 Elsevier B.V. All rights reserved.
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