a sensitive, selective and effective ionic liquid-based single drop microextraction technique was developed by using ionic liquid, 1-hexyl-3-methylimidazolium hexafluorophosphate, c6mimpf6, coupled with electrothermal atomic absorption spectrometry (etaas) for the determination of copper and silver in environmental samples. dithizone was used as chelating agent. several factors that influence t...

A rapid, simple and cost effective solidified floating organic drop microextraction (SFODME) and flow injection flame atomic absorption spectrometric determination (FI-FAAS) method for copper was developed. In this method, a free microdrop of 1-undecanol containing 1,5-diphenyl carbazide (DPC) as the complexing agent was transferred to the surface of an aqueous sample including Cu(II) ions, whi...

A novel dispersive liquid–liquid microextraction method based on the solidification of a floating organic droplet was proposed to pre-concentrate 16 polycyclic aromatic hydrocarbons (PAHs) from water samples prior their determination using gas chromatography–mass spectrometry, in which effect hydrophilic deep eutectic solvent (DES) used as dispersant investigated. The main extraction parameters...