Screening and Optimization of Microextraction of Pb(II) by Inductively Coupled Plasma-Atomic Emission Using Response Surface Methodology

screening and optimization of microextraction of pb(ii) by inductively coupled plasma-atomic emission using response surface methodology

Selective Separation and Preconcentration of trace Amounts of Gallium in Water and Rice Samples using Cloud Point Extraction and Determination by Inductively Coupled Plasma-Atomic Emission Spectrometry

In the present study a cloud-point extraction process using non-ionic surfactant Triton X-114 for selective extraction of gallium from aqueous solutions was developed. The method is based on the complex formation of Ga (III) with N, N′ -bis (salycilidene)-1, 2-phenylenediamine (salophen) as a chelating agent in buffer media of pH 5. After phase separation and dilution of the surfactant-rich pha...

preparation and characterization of new co-fe and fe-mn nano catalysts using resol phenolic resin and response surface methodology study for fischer-tropsch synthesis

کاتالیزورهای co-fe-resol/sio2و fe-mn-resol/sio2 با استفاده از روش ساده و ارزان قیمت همرسوبی تهیه شدند. از رزین پلیمری resol در فرآیند تهیه کاتالیزور استفاده شد.

measurement of urinary cadmium in glazers using solid phase extraction followed by inductively coupled plasma atomic emission spectroscopy

glazers are exposed to a variety of heavy metals in the ceramic industry, causing adverse effect on the body systems. cadmium is one of the major raw materials for production of colored glazes. to evaluate occupational exposure to cadmium, spot urine samples were collected from 49 tile and pottery glazers n yazd city in 2010 at the beginning and end of the work shift (98 samples). totally, 55 o...

simultaneous pre-concentration of cadmium and lead in environmental water samples with dispersive liquid-liquid microextraction and determination by inductively coupled plasma-atomic emission spectrometry

the dispersive liquid–liquid microextraction (dllme) method for determination of pb +2 and cd +2 ions in the environmental water samples was combined with inductively coupled plasma-atomic emission spectrometry (icp-aes). ammonium pyrrolidine dithiocarbamate (apdc), chloroform and ethanol were used as chelating agent, extraction solvent and disperser solvent, respectively. some effective parame...

Photocatalytic Removal of Amaranth Optimization Using Response Surface Methodology

Since Amaranth (AM) is one of the dye compounds which is harmful to human’s life its removal from industrial waste water would reduce their environmental impact and health effect. Copper nanoparticle (CuNP) is a simple and eco-friendly material which can be used to remove this pollutant. In this paper, copper nanoparticles were synthesized, for removal of AM dye. The experiments were designed b...