Evaluation of radioactive and heavy metal pollution in agricultural soil surrounding the lignite-fired thermal power plant using pollution indices.

Soil pollution caused by heavy metals negatively affects the environment and human health. However, the assessment of the environmental and ecological risks caused by heavy metals in agricultural soils in developing countries is limited. This study was carried out to determine heavy metal pollution and its possible sources in the agricultural lands surrounding the lignite-fired Afşin-Elbistan thermal power plant (TPP).

Characterization and application of molecular binary mixed molecular micelles of sodium 10-undecenyl sulfate and sodium N-undecenyl leucinate as pseudostationary phases in micellar electrokinetic chromatography.

Poly (sodium 10-undecenyl sulfate) (poly SUS), poly (sodium 10-undecenyl leucinate) (poly SUL), and their five molecular binary mixed micelles with varied SUS:SUL composition were prepared. The purity of these molecular micelles was confirmed by elemental analysis. Their partial specific volume, aggregation number, methylene selectivity, polarity, phase ratio, mobility, and elution window values were determined using a variety of analytical techniques.

Study of chemical selectivity of molecular binary mixed micelles of sodium 10-undecenyl sulfate and sodium N-undecenyl leucinate using linear solvation energy relationships model.

Poly(sodium 10-undecenyl sulfate) (poly-SUS), poly(sodium N-undecenyl leucinate) (poly-SUL) and their five molecular binary mixed micelles with varied SUS:SUL composition were prepared and used as pseudostationary phases in micellar electrokinetic chromatography (MEKC). Linear solvation energy relationships (LSERs) model and free energy of transfer studies were used to characterize the retention behavior and the selectivity differences among the seven surfactant systems. System constant differences and regression models for varied benzene derivative compounds are used to establish the selectivity differences of the seven pseudostationary phases.

Cationic gemini surfactants as pseudostationary phases in micellar electrokinetic chromatography. Part I: effect of head group.

Two cationic gemini surfactants with pyrrolidinium or alkyl ammonium head groups with but-2-yne spacers, but with the same length hydrocarbon chain have been characterized with respect to their aggregation behaviors and separation power as pseudostationary phases (PSPs) for micellar electrokinetic chromatography (MEKC). They were compared with a commonly used PSP, sodium dodecylsulfate (SDS). The results suggest that the head groups of the surfactants have some effect on physicochemical properties such as critical micelle concentration (CMC), C(20), gamma(CMC), partial specific volume, methylene selectivity and mobilities of the surfactants.

Binary mixed micelles of chiral sodium undecenyl leucinate and achiral sodium undecenyl sulfate: I. Characterization and application as pseudostationary phases in micellar electrokinetic chromatography.

Sodium 10-undecenyl sulfate (SUS), sodium 10-undecenyl leucinate (SUL) and their five different mixed micelles at varied percent mole ratios were prepared. The critical micelle concentration (CMC), C(20), gamma(CMC), partial specific volume, methylene group selectivity, mobilities and elution window were determined using a variety of analytical techniques. These surfactant systems were then evaluated as novel pseudostationary phases in micellar electrokinetic chromatography (MEKC).