A selective and sensitive method for simultaneous determination of lead and zinc by adsorptive differential pulse cathodic stripping voltammetry is presented. The method is based on adsorptive accumulation of the complexes of Pb (II) and Zn(II) ions with Dopamine onto hanging mercury drop electrode (HMDE), followed by reduction of adsorbed species by differential pulse cathodic stripping voltam...

This review is focused on the origin of dye pollutants, their ecotoxicological effects and adsorptive removal using various types adsorbents.

Abstract In this study, an adsorptive electrospun polyamide membrane (ESPA) and polyamide–weathered basalt composite (ESPA-WB) were prepared by electrospinning process at room temperature. Hence, the WB structure was built as a polymeric separation film in combination with ESPA matrix nano-filtration membrane. Then, ESPA-WB membranes characterized using BET surface area analysis, Fourier transf...

A highly sensitive method for bezafibrate determination using a glassy carbon electrode (GCE) modified with multi-walled carbon nanotubes within a dihexadecyl hydrogen phosphate film based on square-wave adsorptive stripping voltammetry (SWAdSV) is proposed. The electrochemical behaviour of bezafibrate has been studied by cyclic voltammetry, showing an irreversible anodic peak at a potential of...

The paper presents a new model for kinetically controlled adsorption at the fluid/fluid interface. The main purpose of the presented approach is to relate easy to estimate bulk surfactant concentration with Gibbs surface excess. Two adsorption isotherms are involved in the new model development: Frumkin and Szyszkowski isotherms. Additionally the Johannsen time profile of concentration in the a...

22 The use of adsorptive chromatography for preparative nucleic acid separations is often limited by low capacity. The 23 possibility that the adsorbent surface area sterically accessible to nucleic acid molecules could be increased by reducing their 24 radius of gyration with compaction agents has been investigated. The equilibrium adsorption capacity of Q-Sepharose 25 anion-exchange matrix fo...

This review presents the adsorptive removal process of hazardous materials onto carbon-based comprising activated carbon, graphene, carbon nanotubes, nanofibers, biochar and aerogels.

Special attention was paid in this work to the role of surface chemistry in the adsorption of phenol and salicylic acid onto activated carbons. To this end, two commercial activated carbons (granular and powdered) were oxidised using ammonium peroxodisulphate [(NH4)2S2O8] and nitric acid in different concentrations. The structural and chemical properties of the oxidised adsorbents were characte...

The main aim of this study was to enrich glycyrrhizic acid ammonium salt known as one of the main compounds of licorice roots (Glycyrrhiza glabra L.) by isoelectric focused adsorptive bubble separation technique with different foaming agents. In the experiments, four bubble separation parameters were used with β-lactoglobulin, albumin bovine, and starch (soluble) preferred as foaming agents and...