Application of cloud point extraction for nickel and zinc ions in water samples

This study examines the use of (CPE) technology for separating and preconcentrating various compounds, including metal ions. Like any other extraction approach, advantage of separation of isolates with CPE was obtained with high efficacy, sensitivity from smallest quantity of sample simply and safely. This study examined the latest CPE techniques for a wide range of analyses, with recent advancement in CPE for identifying and quantifying metals in various environmental samples. After CPE by using dithiocarbamate and its spectrophotometrical analysis was used to measured the trace and heavy metals in aqueous solutions. Triton X-400, a non-ionic surfactant, was used to determine optimum extraction and operational parameters, including pH, reagent concentration, duration and temperature. From this study we conclude that, dithiocarbamate complexes with Nickel and Zinc had a maximum absorption wavelength of 624 and 579 nm, with linearity values in the range of 9.91–800 and 16–1000 ng.ml−1, detection limits of 2.9 and 4.8, and root mean square error of prediction (RMSEP) of 0.0197 and 0.0343 respectively. Hence, with applied approach almost 92.45–102.5% trace heavy metals were recovered from water