ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract A simple and sensitive spectrophotometric method for the determination of cobalt, nickel and copper with desferrioxamine-B (desferal) is described. The sensitivity of the colour reactions of cobalt, nickel and copper is increased by introducing desferal. The pH range for the formation of Co II, Ni II or Cu II-desferal. Chelates is 4.5–8.5, 5.5–9, and 6.5–9.5, respectively. The molar absorptivities of the chelates are 1.2·105, 5.6·104 and 4.8·104 at 545 nm, 390 nm and 680 nm, respectively. Beer's law is obeyed up to 10 μg/ml of metal ion. The effect of desferal concentration, pH, standing time and interfering ions are discussed. The method was applied to the determination of trace amounts of cobalt, nickel and copper in steel and simulated radioactive wastes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02036547
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