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A Sensitive and Simple Extractive-Spectrophotometric Method for the Determination of Microgram Amount of Cobalt by Using. ALPHA.-Benzilmonoxime

Authors: Habibollah ESKANDARI, Hassan S GHAZIASKAR, Ali Asghar ENSAFI
Publication date: 2001
Journal name: Analytical sciences
Volume: 17
Pages: 327-331
Publisher:社団法人日本分析化学会
 
α-Benzilmonoxime has been used for the extraction and determination of cobalt at
microgram amount. The reagent reacts with cobalt (II) in the pH range of 8.8-9.3 to form a
yellow-color chelate, which is extracted in chloroform, toluene, and some other non-polar
solvents. The chelate is stable in chloroform for about one day. Under the optimum
conditions of the α-benzilmonoxime concentration and pH of 9.0, Beer's law was obeyed in
the concentration range of 0.08-2.2 µg/ml cobalt. The molar absorptivity of the extracted ...

 

Journal Papers
Month/Season: 
January
Year: 
2001

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