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Egyptian Journal of Chemistry
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Volume Volume 64 (2021)
Volume Volume 63 (2020)
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elgendy, K., Eldidamony, A., zaky, M., abd el wahaab, B. (2020). Spectrophotometric Determination of Cerium(III) in Some Industrial and Plant Samples Using New Synthesized Azo-dye Reagent: Synthesis and Characterization. Egyptian Journal of Chemistry, 63(7), 2405-2417. doi: 10.21608/ejchem.2019.16914.2029
khaled elgendy; Akram Eldidamony; mounir zaky; badr abd el wahaab. "Spectrophotometric Determination of Cerium(III) in Some Industrial and Plant Samples Using New Synthesized Azo-dye Reagent: Synthesis and Characterization". Egyptian Journal of Chemistry, 63, 7, 2020, 2405-2417. doi: 10.21608/ejchem.2019.16914.2029
elgendy, K., Eldidamony, A., zaky, M., abd el wahaab, B. (2020). 'Spectrophotometric Determination of Cerium(III) in Some Industrial and Plant Samples Using New Synthesized Azo-dye Reagent: Synthesis and Characterization', Egyptian Journal of Chemistry, 63(7), pp. 2405-2417. doi: 10.21608/ejchem.2019.16914.2029
elgendy, K., Eldidamony, A., zaky, M., abd el wahaab, B. Spectrophotometric Determination of Cerium(III) in Some Industrial and Plant Samples Using New Synthesized Azo-dye Reagent: Synthesis and Characterization. Egyptian Journal of Chemistry, 2020; 63(7): 2405-2417. doi: 10.21608/ejchem.2019.16914.2029

Spectrophotometric Determination of Cerium(III) in Some Industrial and Plant Samples Using New Synthesized Azo-dye Reagent: Synthesis and Characterization

Article 1, Volume 63, Issue 7, July 2020, Page 2405-2417  XML PDF (1.56 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.16914.2029
Authors
khaled elgendy1; Akram Eldidamony2; mounir zaky1; badr abd el wahaab email 1
1chemistry department, faculty of science, zagazig university, zagazig, egypt
2Department of Chemistry Faculty of Science, Zagazig University Zagazig, Egypt
Receive Date: 12 September 2019,  Revise Date: 29 October 2019,  Accept Date: 24 December 2019 
Abstract
New spectrophotometric method was proposed for the rapid and accurate determination of Ce(III) using a new synthesized sulfacetamide azo-dye reagent [N-(4-((2,3-dihydroy-5-(3,5,7-trihydroxy-4-oxo-4H-chromen-2-yl)phenyl)diazenyl) phenylsulfonyl)acetamide] [DTPPA]. The reagent was characterized by IR, 1HNMR and mass spectra. The developed method was based on the reaction of Ce(III) with DTPPA reagent to form brown colored complex in an alkaline medium using borate buffer at pH = 9 with absorption maximum at 560 nm. The method was enhanced by the use of cationic surfactant of cetylpyridinium bromide (CPB). Different factors affecting the formation and stability of the complex such as reagent concentration, time, temperature, solvents and order of addition were also studied. The composition of the complex was found 1:2 (metal: ligand) by both Job's and molar ratio methods. The stability constant of the complex was calculated to be 3.387×106. Beer's law was obeyed in the concentration range of 5.0-100 µg mL-1 of Ce(III) with molar absorpitivity and Sandell’s sensitivity 1.020×104 L mol-1 cm-1 and 0.01373 µg cm-2, respectively. The proposed method was applied for the determination of micro-amounts of Ce(III) in some industrial and plant samples. The Ce(III) complex was also prepared in the solid state.
Keywords
Spectrophotometry; Cerium(III); Azo-dye reagent; Industrial and plant samples
Main Subjects
Analytical chemistry
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