Recent developments in the application of cloud point extraction as procedure for speciation of trace elements

Updating the Status quo on the Eco-Friendly Approach for Antioxidants Recovered from Plant Matrices Using Cloud Point Extraction

“…Furthermore, the CPE is usually carried out at mild or low temperatures and without the use of hazardous or toxic reagents. The extraction efficiency of target compounds by the CPE technique is influenced by many factors, such as the type and concentration of the surfactants, the pH of a sample solution, the temperature and duration of reaching equilibrium, and ionic strength [ 13 , 14 , 15 , 16 , 17 ]. Many recent scientific papers are precisely related to the monitoring of these factors on the extraction efficiency of target compounds as well as their optimization.…”

Determination of Arsenic by ICP‐OES after Cloud Point Extraction with Salt Induced Phase Separation: Application to Gadolinium Based MRI Contrast Agent**

“…Details for the developments and applications of CPE method are excellently reviewed elsewhere. [2][3][4][5] The most common oxidation states for arsenic are + 5 and + 3. Respectively, inorganic arsenic can be found in samples for analysis as arsenates and arsenites.…”

“…To date CPE has numerous applications for different chemical species separation and preconcentration. Details for the developments and applications of CPE method are excellently reviewed elsewhere [2–5] …”

Selective separation of uranyl ions from some lanthanide elements using a promising β-enaminoester ligand by cloud point extraction

“…Thus, the separation and preconcentration of uranium get great attention for nuclear energy development and the protection of the ecological environment. Up to now, several techniques such as solid-phase extraction, co-precipitation, and otation, [6][7][8][9] have been introduced globally for separation and pre-concentration of different metal ions. Compared with these techniques, cloud point extraction (CPE), and aqueous biphasic systems are commonly used for metal ion extraction owing to their eco-friendliness.…”

“…10,11 However, the CPE has been reported as a more powerful protocol for the selective extraction and separation of trace organic and/or inorganic species owing to its simplicity, high concentration factor, good efficiency, low cost, and little organic solvent required. [7][8][9][12][13][14] The CPE method is essentially based on the formation of hydrophobic complexes, for inorganic species, between target metal ions and chelating agents. Thanks to ionic and/or non-ionic surfactants, hydrophobic complexes were separated and preconcentrated above their critical micelle concentrations (CMC).…”