supported liquid membrane

Liquid phase microextraction (LPME) into a microfluidic has undergone great advances focused on downscaled and miniaturized devices. In this work, a microfluidic device was developed for the extraction of sulfonamides in order to accelerate the mass transfer and passive diffusion of the analytes from the donor phase to the acceptor phase.

7p viginny 23-12-2022 10 3   Download

The present paper defines the optimal extraction window (OEW) for three-phase membrane-based liquidphase microextraction (MP-LPME) in terms of analyte polarity (log P), and anchors this to existing theories for equilibrium partitioning and kinetics. Using deep eutectic solvents (DES) as supported liquid membranes (SLM), we investigated how the OEW was affected by ionic-, hydrogen bond and π-π interactions between the SLM and analyte.

8p viginny 23-12-2022 7 3   Download

This paper investigated the effect of important factors on SLMSD performance to recover indium from etching solution such as: pH of feed solution, extractant (Di-(2-ethylhexyl) phosphoric acid (D2EHPA)) concentration, oxalic acid concentration. It was found that 99.5 % In3+ was removed from feed solution in about 20 minutes with high concentration factor (4.5) under suitable conditions (pH 1; 0.6M Di-(2- ethylhexyl) phosphoric acid (D2EHPA), 2 wt% oxalic acid).

6p nguaconbaynhay10 19-02-2021 9 2   Download

Process intensification using hollow fibre-supported liquid membranes (HFSLMs) has been studied in the present work. The importance of use of HFSLM is highlighted over the other conventional available methods for separation. The present study focuses mainly on the recovery of acids and metal ions from dilute aqueous waste streams. The solute (acids or metal ions) flux through hollow fibre contactor measured under different operating conditions. The HFSLMs have been compared with conventional separation techniques, such as solvent extraction, ion exchange, etc.

24p lgngocdiep 09-10-2020 21 0   Download

Reactive liquid-liquid extraction of inorganic acids with amines and effect of solvating diluents; Liquid extraction of tall oil from wastewaters of paper industry • Supercritical fluid extraction of natural products; Enzymatic reactions in supercritical CO2; Solubilities of liquids and solids in dense CO2 with entrainer • Relation between the morphology and application properties of polymer catalysts and adsorbents • Study of the permeation and pervaporation of volatile organic substance (propan-1-ol, toluene) • Observation of the competitive adsorption on Vycor glass membrane App...

66p lulanphuong 22-03-2012 84 12   Download