Cadmium and Lead Determination in Freshwater and Hemodialysis Solutions by Thermospray Flame Furnace Atomic Absorption Spectrometry Following Cloud Point Extraction

Determination of Copper and Cadmium in Petroleum Produced Formation Water by Electrothermal Atomic Absorption Spectrometry after Cloud Point Extraction

“…[11][12][13][14] The cloud point is a phenomenon in which an aqueous surfactant solution becomes cloudy by adding an appropriate substance or by changing some of its properties such as temperature or pressure. 15 The use of the CPE has been described in various types of matrices and also coupled to different detection techniques for the determination of inorganic species among which are inductively coupled plasma optical emission spectrometry (ICP OES), 2,16 flame atomic absorption spectrometry (F AAS), 6,17 thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS), 18 spectrophotometry UV-Vis, 19 and graphite furnace atomic absorption spectrometry (GF AAS). 12 In the present paper, CPE, in association with GF AAS, is proposed for preconcentration and determination of copper and cadmium in samples of PFW.…”

Speciation of chromium by dispersive liquid–liquid microextraction followed by laser-induced breakdown spectrometry detection (DLLME–LIBS)

“…In general, an excess is necessary to guarantee the formation of a fair amount of the target analyte complex, even in the presence of interfering species. [20][21][22] The volume of disperser solvent should be controlled to ensure adequate extractant solvent dispersion, thus leading to the formation of ne droplets that are responsible for the extraction efficiency in DLLME. However, an excess of disperser solvent may increase the solubility of the previously formed hydrophobic analyte complex in the aqueous phase and the dilution of the organic phase, thus resulting in a lower extraction efficiency.…”

Preconcentration and Determination of Cadmium, Lead, and Cobalt inMoringa Oleifera(Moringaceae) Using Magnetic Solid-Phase Extraction and Flame Atomic Absorption Spectrometry

“…In order to improve detection limits for elemental analysis, preconcentration procedures are frequently necessary (Bahar and Babamiri 2015) that have included solid phase extraction (Baysal, Kahraman, and Akman 2009;Turker 2007;Dasbasi et al 2015), dispersive solid-liquid extraction (Méndez et al 2015), carrier element-free coprecipitation (Duran et al 2015), cloud point extraction (Garcia et al 2015), and dispersive liquid-liquid microextraction (Bahar and Babamiri 2015;Li et al 2015). Most extraction methods are lengthy, require large volumes of organic solvents, and provide limited sensitivity and selectivity (Khan et al 2014).…”