A new method for analysis of sunset yellow in food samples based on cloud point extraction prior to spectrophotometric determination

Determination of thermodynamics and design parameters for ionic liquid-induced cloud point extraction of Coralene red dye

“…The positive values of DH 0 reflects the endothermic nature of solubilization affinity of CR in the micellar-rich phase (coacervate phase). Thus, the number of hydrophobic micelles in the micellar-rich phase becomes more, while the cmc of nonionic surfactant decreases by increasing temperature, causing an increase in the extraction percentage of dye (El-Shahawi et al 2013). Figure s3 shows that the decrease in DH 0 value with increment of CR concentration at a fixed surfactant concentration is due to the decrease in the amount of CR solubilization per mole of surfactant as discussed in the previous section.…”

Highly efficient micellar extraction of toxic picric acid into novel ionic liquid: Effect of parameters, solubilization isotherm, evaluation of thermodynamics and design parameters

“…for extraction process were calculated using the following equations [46], phase. This elucidates the strong electrostatic association between PA and TX-114-DIL mixture that act as complex and driving water molecules out of coacervate phase in which more of micelles are aggregated thereby facilitate the precise extraction of complex [46]. As described in preceding section, the increase in solubilization capacity with initial surfactant concentration is supported by increment in 0 H  value (Fig.12b).…”

Enhanced separation of toxic Blue BG dye by cloud point extraction with IL as an additive: Effect of parameters, solubilization isotherm and evaluation of thermodynamics and design parameters

“…This explicates the strong electrostatic association between dye and TX-114-IL mixture that acts as a complex and drive water molecules out of coacervate phase in which more of micelles are aggregated and facilitate the precise extraction of complex. Accordingly, the number of hydrophobic micelles in the micellar rich phase becomes more, while, the CMC of non-ionic surfactant decreases by increasing temperature and leads to enhancement in the extraction percentage of dye [14].…”

“…In recent times, the application of CPE for wastewater treatment has rapidly progressed. Some examples of dyes that have been separated using this method are toxic Congo red, Eosin [11], Nitrobenzene [12], Malachite green [13], Sunset yellow [14], Rhodamine B [15], and Chrysoidine [16].…”