Magnetic nanofibrous polyaniline nanocomposite for solid-phase extraction of naproxen from biological samples prior to its spectrofluorimetric determination

Rafighi, Parvin; Yaftian, Mohammad Reza; Haghighi, Behzad

doi:10.1007/s13738-018-1319-x

Cited by 5 publications

(1 citation statement)

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“…The adsorbents employed are commonly composed by a magnetic core, usually magnetite (Fe 3 O 4 ), covered by a shell which promoted selectivity in the extraction process and protect the magnetite from degrading. Some solids proposed for Npx analysis includes a shell phase of, carbon (graphene and carbon nanotubes), silica, and polymer [17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Solid-Phase Extraction Based on Poly 4-Vinyl Pyridine for HPLC-FLD Analysis of Naproxen in Urine Samples

et al. 2020

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A magnetic solid phase extraction technique followed by liquid chromatography with a fluorescence detector for naproxen analysis in human urine samples was developed. The method includes the extraction of naproxen with a magnetic solid synthetized with magnetite and poly 4-vinylpriridine, followed by the magnetic separation of the solid phase and desorption of the analyte with methanol. Under optimal conditions, the linear range of the calibration curve was 0.05–0.60 μg L−1, with a limit of detection of 0.02 μg L−1. In all cases values of repeatability were lower than 5.0% with recoveries of 99.4 ± 1.3%. Precision and accuracy values are adequate for naproxen (Npx) analysis in urine samples.

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