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Title: | Second derivative spectrophotometry for simultaneous determination of iron (II) and copper (II) using 2-ketobutyric acid thiosemicarbazone |
Authors: | Attah, L E |
Keywords: | Derivative spectrophotometry;Zero crossing;Iron;Copper;Vanadium;2-Ketobutyric acid thiosemicarbazone |
Issue Date: | Jul-2009 |
Publisher: | CSIR |
Abstract: | A new chromophoric reagent, 2-ketobutyric acid thiosemicarbazone (KBAT) has been used for the simultaneous determination of iron, copper and vanadium. KBAT forms yellowish-green and blue complexes with iron (II) and copper (II) respectively at pH 6.5 and a yellow complex with vanadium (V) at pH 5.5. Calibration graphs for the individual determinations by second derivative spectrophotometry were obtained. The derivative amplitudes obeyed Beer’s law at 387.2 nm for copper (II), 440 nm for iron (II) and 400 nm for vanadium (V), in the concentration ranges 0.30-2.40, 0.20-2.280 and 0.25-2.56 ![]() |
Page(s): | 351-356 |
URI: | http://hdl.handle.net/123456789/5913 |
ISSN: | 0975-0991 (Online); 0971-457X (Print) |
Appears in Collections: | IJCT Vol.16(4) [July 2009] |
Files in This Item:
File | Description | Size | Format | |
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IJCT 16(4) 351-356.pdf | 239.39 kB | Adobe PDF | View/Open |
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