| Autor: |
Kizil, Nebiye, Erbilgin, Duygu, Basaran, Erkan, Yola, Mehmet Lütfi, Yilmaz, Erkan, Marouch, Salsabil, Soylak, Mustafa |
| Předmět: |
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| Zdroj: |
Analytical Letters; 2024, Vol. 57 Issue 7, p1182-1196, 15p |
| Abstrakt: |
A new magnetic solid phase microextraction method (MSPE) was developed for the preconcentration of rhodamine B from plastics, cosmetics, and environmental samples before spectrophotometric analysis. A nanocomposite adsorbent containing ZnO nanoparticles (NPs), multi-walled carbon nanotubes (MWCNTs) and Fe3O4 nanoparticles was synthesized by a hydrothermal procedure. The new magnetic nanocomposite (MWCNTs@ZnO@Fe3O4) was characterized by Fourier-transform infrared spectroscopy (FT-IR), x-ray diffraction (XRD), and scanning electron microscopy (SEM). The pH, sample volume, eluent type, adsorbent mass, influence of foreign species, and analyte-adsorbent and eluent contact times were optimized. The optimum pH was 3; adsorbent mass, 20 mg; sample volume, 50 mL; and eluent, 0.7 mL of ethanol. Recovery values exceeding 95% were obtained. The developed vortex assisted magnetic solid phase extraction method (VA-MSPE) was applied to practical analysis. The limits of detection (LOD) and quantification (LOQ) were 0.83 µg L−1 and 2.77 µg L−1, respectively. The addition/recovery experiments were carried on several water samples to demonstrate acceptable recoveries. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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