A Theoretical Evaluation of Magneto-Transport Properties like Electrical Resistivity, Hall Resistivity, Hall Coefficient and Hall Angle of Some Heavy- Fermion Superconductors

Abstract

Cloud point extraction (CPE) was developed for the separation and pre concentration of trace amounts of cadmium. Flame atomic absorption spectrometry (FAAS) is combined with (CPE) for determine trace amounts of cadmium in brine water. The method is depended on the formation of the hydrophobic complex between Cd ions and sodium diethyldithiocarbamate (DDTC) followed by its extraction into a Triton X-114 using surfactant. The parameters such as pH of sample, concentrations of DDTC and Triton X-114, equilibrium temperature, and equilibrium time, which affect both complexation and extraction, are optimized. Under the selected optimum conditions, and use of magnesium nitrate as matrix modifying agents enable us to develop the direct method for determination cadmium in brine water. The accuracy of the method was better than (3.494) % while the detection limit was found to be (0.841 μg/l) for preconcentration of 1 ml of sample for the determination of Cadmium ions is obtained.