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• W1991762811 abstract "This paper reports a sensitive analytical method based on microwave-assisted extraction and continuous solid-phase extraction (SPE), followed by gas chromatography–mass spectrometry (GC−MS), for the simultaneous determination of residues of 18 pharmaceuticals (analgesics, antibacterials, anti-epileptics, β-blockers, lipid regulators and non-steroidal anti-inflammatories), one personal care product and 3 hormones in soils, sediments and sludge. The analytes are extracted with 3:2 methanol/water under the action of microwave energy and the resulting extract is passed through a SPE column to clean up the sample matrix and preconcentrate the analytes. Then, the analytes, trapped on Oasis-HLB sorbent, are eluted with ethyl acetate, silylated and determined by GC–MS. The proposed method provides a linear response over the concentration range 2.5–20 000 ng/kg with correlation coefficients higher than 0.994 in all cases. Also, it features low limits of detection (0.8–5.1 ng/kg), good precision (within- and between-day relative standard deviation less than 7%) and recoveries ranging from 91 to 101%. The method was successfully applied to agricultural soils, river and pond sediments, and sewage sludge. All samples contained some target analyte and sludge contained most —some at considerably high concentrations." @default.
• W1991762811 created "2016-06-24" @default.
• W1991762811 creator A5018758034 @default.
• W1991762811 creator A5019722620 @default.
• W1991762811 date "2012-03-01" @default.
• W1991762811 modified "2023-10-02" @default.
• W1991762811 title "Combined microwave-assisted extraction and continuous solid-phase extraction prior to gas chromatography–mass spectrometry determination of pharmaceuticals, personal care products and hormones in soils, sediments and sludge" @default.
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• W1991762811 doi "https://doi.org/10.1016/j.scitotenv.2011.12.058" @default.
• W1991762811 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22285085" @default.
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