Document Details
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Document Type |
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Thesis |
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Document Title |
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Preconcentration, Determination and Chemical Speciation of Trace Concentrations of some Inorganic Pollutants in Aqueous Media زيادة التركيز والتقدير والتصنيف الكيميائى لتركيزات متناهية الصغر لبعض الملوثات غير العضوية فىالأوساط المائية |
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Subject |
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Chemistry Analytica |
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Document Language |
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English |
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Abstract |
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There has been considerable interest in developing low cost methods for removal and precise determination of trace concentrations of heavy metal ions in aqueous media. Hence the in the present study is focused on: :Developing of a simple, low cost and sensitive square wave adsorptive cathodic stripping voltammetry (DP-CSV) method for trace mercury (II) determination using the reagent 4-(2-Thiazolylazo) - resorcinol (TAR). Plot of mercury (II) concentration versus cathodic peak current (Ip, c) was linear over a range of concentration (1-12 μg L-1). The method was applied successfully for the analysis of mercury (II) in water samples. The method was validated by comparison with reported methods; ii. Deploying a precise and selective SQ -CSV method for the analysis of trace concentrations of palladium (II) based upon the adsorptive accumulation of the resulting palladium(II)-TAR complex on the HMDE, followed by the stripping voltammetric measurements of the resulting ip,c of the adsorbed complex vs. Ag/AgCl electrode. The method was applied for the analysis of palladium(II) in various water samples and compared successfully with the standard ICP-MS method. The method provide good correlation with the ICP-MS data for the analysis of trace concentration of palladium(II) complex species and finally iii. Studying the retention profile, kinetics, and thermodynamic characteristics of arsenic(III) uptake by the local clay. A dual retention mechanism for arsenic (ІІІ) sorption involving a “weak base anion ion exchanger” and/ or “solvent extraction” of
v
the [AsCl4]-aq and an added component for surface adsorption was proposed. retention onto the sorbent The sorption isotherm. |
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Supervisor |
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Abdulghani Hamza |
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Thesis Type |
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Doctorate Thesis |
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Publishing Year |
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1434 AH
2013 AD |
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Number Of Pages |
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180 |
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Co-Supervisor |
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Ameera Al-Attas |
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Added Date |
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Monday, October 28, 2013 |
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Researchers
| امل علي باحفي | Bahafi, Amal Ali | Investigator | Doctorate | |
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