Selective Flotation-Spectrophotometric Determination of Trace Copper(II) in Natural Waters, Human Blood and Drug Samples Using Phenanthraquinone Monophenylthiosemicarbazone
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概要
- 論文の詳細を見る
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 517nm, the molar absorptivity being 2.3×10^4 and 4.8×10^4l mol^<-1> cm^<-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 Cu^<II>. The molar absorptivity of the floated Cu-PPT complex was 1.5×10^5l mol^<-1> cm^<-1>. Beer's law was obeyed over the range 3-400ppb at 545mn, . 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 Cu^<II> in natural waters, serum blood and some drug samples.
- 公益社団法人日本薬学会の論文
- 2001-06-01
著者
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Ghazy Shaban
Chemistry Department Faculty Of Science Mansoura University
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Akl M
Mansoura Univ. Mansoura Egy
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Akl Magda
Chemistry Department Faculty Of Science El-mansoura University
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KHALIFA Magdi
Chemistry Department, Faculty of Science, Mansorua University
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Khalifa Magdi
Chemistry Department Faculty Of Science Mansorua University
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Ghazy Shaban
Chemistry Department Faculty Of Science Mansorua University
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