73 research outputs found
Efficient Visible-Light Photocatalytic Properties in Low-Temperature Bi-Nb-O System Photocatalysts
Individual and Simultaneous Voltammetric Determination of Cd(II), Cu(II) and Pb(II) Applying Amino Functionalized Fe 3
Solid phase extraction of trace amounts of zinc and cadmium ions using perlite as a supper sorbent
A novel method using a packed column with perlite as a new sorbent has been developed for preconcentration of trace amounts of zinc and cadmium prior to their determination by flame atomic absorption spectrometry. Several factors that may be affected on the solid phase extraction (SPE) process, such as pH, sample volume, flow rate, volume and concentration of eluent were studied and optimized. Linearity was maintained between 0.001â0.1 ”g mLâ1 for zinc, and 0.001â0.3 ”g mLâ1 for cadmium. Detection limits based on 3Sb for zinc and cadmium were 1.8 and 1.6 ng mLâ1, respectively. The relative standard deviations of eight replicate measurements of 0.02 ”g mLâ1 of zinc and 0.05 ”g mLâ1 of cadmium ions were 2.1% and 1.8%, respectively. Finally, the developed method was successfully applied to extraction and determination of the zinc and cadmium ions in the water and food samples and satisfactory results were obtained
Impedimetric detection of cocaine by using an aptamer attached to a screen printed electrode modified with a dendrimer/silver nanoparticle nanocomposite
335 THE ASSESSMENT OF TADALAFIL EFFECT ON LOWER URINARY TRACT SYMPTOMS SUGGESTIVE OF BENIGN PROSTATIC HYPERPLASIA IN PATIENTS TREATED WITH STANDARD MEDICATION
Electrochemical Preparation and Thermal Characterization of Copper Sulfide Nanoparticles
A glassy carbon electrode with electrodeposited silver nanoparticles for aptamer based voltammetric determination of trinitrotoluene using riboflavin as a redox probe
Trace measurement of lead and cadmium ions in wastewater samples using a novel dithizone immobilized metalâorganic frameworkâbased ÎŒâdispersive solidâphase extraction
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