Determination of Vanadium(V) by Flow injection and sequential injection analysis | ||
| Journal of University of Babylon | ||
| Article 1, Volume 22, Issue 1, January 2014, Pages 354-363 | ||
| Authors | ||
| Khdija Jabar Ali; | ||
| Abstract | ||
| Two new simple and rapid methods are reported for the accurate and precise spectrophotometric determination of Vanadium (V) using flow injection analysis(FIA) and sequential injection analysis(SIA). The methods are based on the fast oxidation of iodide ion by V(V) in acidic medium to iodine which is determined spectrophotometrically at 353 nm. The methods allow the determination of linear range ( 0.05- 1.50 ) mg /l , ( 0.02 – 4.00) mg /l at a sampling rate of 50 , 60 injections per hour , the detection limits ( 0.02 mg /l , 0.01 mg /l ) for FIA and SIA respectively. Relative standard deviation for( 1 mg / l ) ,n=3 for both methods are found ( 1.1111for FIA and 0.9523 for SIA ). Desperation coefficient is measure for the two methods. | ||
| Keywords | ||
| Vanadium; sequential; Determination | ||
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