Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH)
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41 - 48
Keywords
Abstract
Ce (III) and Th (IV) reacts with pyridine-2—aldehyde-2—pyridylhydrazone in aqueous solutions containing 50 % ethanol at pH's 7.75 and 8.45 respectively. Beer's law is obeyed over the range 0.0-15.p.g and 0.0-18 ktg of cerium and thorium respectively. The proposed procedure is sensitive, since molar absorptivity is 2.56 x 10 4 and 3.60 X 10 4 1.mol -1 cm-1 for Ce (III) and Th (IV) respectively. The composition and stability of these complexes have been determined. The limitation of this procedure and the effect of other ions have been studied.
Hannoun, M. A. (1987). Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH). An-Najah University Journal for Research - A (Natural Sciences), 4(1), 41–48. https://doi.org/10.35552/anujr.a.4.1.449
[1]M. A. Hannoun, “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH),” An-Najah University Journal for Research - A (Natural Sciences), vol. 4, no. 1, pp. 41–48, Jan. 1987, doi: 10.35552/anujr.a.4.1.449.
Hannoun, Mohammad A. “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH).” An-Najah University Journal for Research - A (Natural Sciences), vol. 4, no. 1, Jan. 1987, pp. 41–48. Crossref, https://doi.org/10.35552/anujr.a.4.1.449.
1.Hannoun MA. Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH). An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 1987 Jan;4(1):41–8. Available from: http://dx.doi.org/10.35552/anujr.a.4.1.449
Hannoun, Mohammad A. “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH).” An-Najah University Journal for Research - A (Natural Sciences) 4, no. 1 (January 1987): 41–48. https://doi.org/10.35552/anujr.a.4.1.449.
Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH)
المؤلفون:
معلومات المقال
41 - 48
الكلمات الإفتتاحية
الملخص
Ce (III) and Th (IV) reacts with pyridine-2—aldehyde-2—pyridylhydrazone in aqueous solutions containing 50 % ethanol at pH's 7.75 and 8.45 respectively. Beer's law is obeyed over the range 0.0-15.p.g and 0.0-18 ktg of cerium and thorium respectively. The proposed procedure is sensitive, since molar absorptivity is 2.56 x 10 4 and 3.60 X 10 4 1.mol -1 cm-1 for Ce (III) and Th (IV) respectively. The composition and stability of these complexes have been determined. The limitation of this procedure and the effect of other ions have been studied.
Hannoun, M. A. (1987). Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH). An-Najah University Journal for Research - A (Natural Sciences), 4(1), 41–48. https://doi.org/10.35552/anujr.a.4.1.449
[1]M. A. Hannoun, “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH),” An-Najah University Journal for Research - A (Natural Sciences), vol. 4, no. 1, pp. 41–48, Jan. 1987, doi: 10.35552/anujr.a.4.1.449.
Hannoun, Mohammad A. “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH).” An-Najah University Journal for Research - A (Natural Sciences), vol. 4, no. 1, Jan. 1987, pp. 41–48. Crossref, https://doi.org/10.35552/anujr.a.4.1.449.
1.Hannoun MA. Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH). An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 1987 Jan;4(1):41–8. Available from: http://dx.doi.org/10.35552/anujr.a.4.1.449
Hannoun, Mohammad A. “Spectrophotometric Studies and Analytical Application of Cerium (III) and Thorium (IV) Chelates with Pyridine-2-Aldehyde-2-Pyridylhydrazone (PAPH).” An-Najah University Journal for Research - A (Natural Sciences) 4, no. 1 (January 1987): 41–48. https://doi.org/10.35552/anujr.a.4.1.449.
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