tellurium and sulfuric-acid

tellurium has been researched along with sulfuric-acid* in 2 studies

Other Studies

2 other study(ies) available for tellurium and sulfuric-acid

Article	Year
Determination of total Sb, Se, Te, and Bi and evaluation of their inorganic species in garlic by hydride-generation-atomic-fluorescence spectrometry. Analytical and bioanalytical chemistry, 2009, Volume: 394, Issue:6 A sensitive and simple analytical method has been developed for determination of Sb(III), Sb(V), Se(IV), Se(VI), Te(IV), Te(VI), and Bi(III) in garlic samples by using hydride-generation-atomic-fluorescence spectrometry (HG-AFS). The method is based on a single extraction of the inorganic species by sonication at room temperature with 1 mol L(-1) H2SO4 and washing of the solid phase with 0.1% (w/v) EDTA, followed by measurement of the corresponding hydrides generated under two different experimental conditions directly and after a pre-reduction step. The limit of detection of the method was 0.7 ng g(-1) for Sb(III), 1.0 ng g(-1) for Sb(V), 1.3 ng g(-1) for Se(IV), 1.0 ng g(-1) for Se(VI), 1.1 ng g(-1) for Te(IV), 0.5 ng g(-1) for Te(VI), and 0.9 ng g(-1) for Bi(III), in all cases expressed in terms of sample dry weight. Topics: Antimony; Bismuth; Garlic; Hydrogen; Inorganic Chemicals; Ions; Plant Leaves; Selenium Compounds; Solanum lycopersicum; Spectrometry, Fluorescence; Sulfuric Acids; Tellurium	2009
Kinetics study on separation of cadmium from tellurium in acidic solution media using ion-exchange resins. Journal of hazardous materials, 2005, Oct-17, Volume: 125, Issue:1-3 The feasibility of using ion-exchange resins to separate cadmium from tellurium in acidic solutions of the two metals was investigated. We studied the competitive adsorption of cadmium and tellurium in such resins under varying acid strengths and contact time. We found that low sulfuric acid strength (i.e., 0.5 M) was most effective in removing cadmium from solutions. Different ion-exchange resins were tested for their affinity for cadmium and tellurium ions. In the selected systems, the ion-exchange rate of cadmium was rapid in the first 20 min, and reached equilibrium within 2 h. The Lagergren first-order model described the kinetic data with high coefficient of determination and correlation values. At room temperatures the ion-exchange for cadmium onto the resin followed the Freundlich isotherm model. The maximum removal of cadmium obtained from batch studies using resin A was 91%. Column studies with the same resin showed a removal of cadmium of 99.99% or higher. Topics: Adsorption; Cadmium; Industrial Waste; Ion Exchange Resins; Kinetics; Models, Chemical; Osmolar Concentration; Solutions; Sulfuric Acids; Tellurium	2005

Article

Year

Determination of total Sb, Se, Te, and Bi and evaluation of their inorganic species in garlic by hydride-generation-atomic-fluorescence spectrometry.

Analytical and bioanalytical chemistry, 2009, Volume: 394, Issue:6

A sensitive and simple analytical method has been developed for determination of Sb(III), Sb(V), Se(IV), Se(VI), Te(IV), Te(VI), and Bi(III) in garlic samples by using hydride-generation-atomic-fluorescence spectrometry (HG-AFS). The method is based on a single extraction of the inorganic species by sonication at room temperature with 1 mol L(-1) H2SO4 and washing of the solid phase with 0.1% (w/v) EDTA, followed by measurement of the corresponding hydrides generated under two different experimental conditions directly and after a pre-reduction step. The limit of detection of the method was 0.7 ng g(-1) for Sb(III), 1.0 ng g(-1) for Sb(V), 1.3 ng g(-1) for Se(IV), 1.0 ng g(-1) for Se(VI), 1.1 ng g(-1) for Te(IV), 0.5 ng g(-1) for Te(VI), and 0.9 ng g(-1) for Bi(III), in all cases expressed in terms of sample dry weight.

Topics: Antimony; Bismuth; Garlic; Hydrogen; Inorganic Chemicals; Ions; Plant Leaves; Selenium Compounds; Solanum lycopersicum; Spectrometry, Fluorescence; Sulfuric Acids; Tellurium

2009

Kinetics study on separation of cadmium from tellurium in acidic solution media using ion-exchange resins.

Journal of hazardous materials, 2005, Oct-17, Volume: 125, Issue:1-3

The feasibility of using ion-exchange resins to separate cadmium from tellurium in acidic solutions of the two metals was investigated. We studied the competitive adsorption of cadmium and tellurium in such resins under varying acid strengths and contact time. We found that low sulfuric acid strength (i.e., 0.5 M) was most effective in removing cadmium from solutions. Different ion-exchange resins were tested for their affinity for cadmium and tellurium ions. In the selected systems, the ion-exchange rate of cadmium was rapid in the first 20 min, and reached equilibrium within 2 h. The Lagergren first-order model described the kinetic data with high coefficient of determination and correlation values. At room temperatures the ion-exchange for cadmium onto the resin followed the Freundlich isotherm model. The maximum removal of cadmium obtained from batch studies using resin A was 91%. Column studies with the same resin showed a removal of cadmium of 99.99% or higher.

Topics: Adsorption; Cadmium; Industrial Waste; Ion Exchange Resins; Kinetics; Models, Chemical; Osmolar Concentration; Solutions; Sulfuric Acids; Tellurium

2005