Selective Flotation-Spectrophotometric Determination of Trace Copper(II) in Natural Waters, Human Blood and Drug Samples Using Phenanthraquinone Monophenylthiosemicarbazone.
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- KHALIFA Magdi Ebrahiem
- Chemistry Department, Faculty of Science, Mansorua University
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- AKL Magda Ali
- Chemistry Department, Faculty of Science, Mansorua University
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- GHAZY Shaban El-Sayed
- Chemistry Department, Faculty of Science, Mansorua University
Bibliographic Information
- Other Title
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- Selective Flotation Spectrophotometric Determination of Trace Copper 2 in Natural Waters Human Blood and Drug Samples Using Phenanthraquinone Monophenylthiosemicarbazone
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Abstract
Copper(II) forms 1:1 and 1:2 intense red complexes with phenanthraquinone monophenylthiosemicarbazone (PPT) at pH 3-3.5 and ≥6.5, respectively. These complexes exhibit maximal absorbance at 545 and 517 nm, the molar absorptivity being 2.3×104 and 4.8×104 l mol-1cm-1, respectively. However, the 1:1 complex was quantitatively floated with oleic acid (HOL) surfactant in the pH range 4.5-5.5, providing a highly selective and sensitive procedure for the spectrophotometric determination of CuII. The molar absorptivity of the floated Cu-PPT complex was 1.5×105 l mol-1cm-1. Beer’s law was obeyed over the range 3-400 ppb at 545 nm. The analytical parameters affecting the flotation process and hence the determination of copper traces were reported. Also, the structure of the isolated solid complex and the mechanism of flotation were suggested. Moreover, the procedure was successfully applied to the analysis of CuII in natural waters, serum blood and some drug samples.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 49 (6), 664-668, 2001
The Pharmaceutical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204158790016
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- NII Article ID
- 110003615966
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- NII Book ID
- AA00602100
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- COI
- 1:CAS:528:DC%2BD3MXktFygsrs%3D
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 5792658
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- PubMed
- 11411513
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed