11 research outputs found
Polymerisation of dopamine on the carbon graphite nitride nanosheets as an effective adsorbent in determination of metal ions using effervescent-assisted dispersive micro solid-phase extraction method
No full textDiphenyl diselenide grafted onto a Fe3O4-chitosan composite as a new nanosorbent for separation of metal ions by effervescent salt-assisted dispersive magnetic micro solid-phase extraction
No full textVortex assisted solid-phase extraction of lead(II) using orthorhombic nanosized Bi2WO6 as a sorbent
No full textNanosized single crystal orthorhombic Bi2WO6 was synthesized by a hydrothermal method and used as a sorbent for vortex assisted solid phase extraction of lead(II). The crystal and molecular structure of the sorbent was examined using XRD, Raman, SEM and SEM-EDX analysis. Various parameters affecting extraction efficiency were optimized by using multivariate design. The effect of diverse ions on the extraction also was studied. Lead was quantified by flame atomic absorption spectrometry (FAAS). The recoveries of lead(II) from spiked samples (at a typical spiking level of 200-400 ng.mL(-1)) are >95%. Other figures of merit includes (a) a detection limit of 6 ng.mL(-1), (b) a preconcentration factor of 50, (c) a relative standard deviation of 1.6%, and (d) and adsorption capacity of 6.6 mg.g(-1). The procedure was successfully applied to accurate determination of lead in (spiked) pomegranate and water samples
Synthesis of a magnetic WO3 nanocomposite for use in highly selective preconcentration of Pb(II) prior to its quantification by FAAS
No full textA glassy carbon electrode modified with a bismuth film and laser etched graphene for simultaneous voltammetric sensing of Cd(II) and Pb(II)
No full textSimultaneous application of cisplatin and static magnetic field enhances oxidative stress in HeLa cell line
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The effects of exogenous ABA applied to maize (Zea mays L.) roots on plant responses to chilling stress
No full textComparison of antibacterial and antibiofilm activities of biologically synthesized silver nanoparticles against several bacterial strains of medical interest
No full textCytotoxic and mutagenic effects of green silver nanoparticles in cancer and normal cells: a brief review
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