Mb. Melwanki et J. Seetharamappa, Spectrophotometric determination of vanadium(V) using methdilazine hydrochloride in minerals and steel samples, I J CHEM A, 39(10), 2000, pp. 1107-1109
Citations number
10
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
Methdilazine hydrochloride has been used as a sensitive and selective reage
nt for the rapid spectrophotometric determination of vanadium(V). The reage
nt gives instantaneously a red coloured species on reaction with vanadium(V
) in phosphoric acid medium and exhibits maximum absorbance at 512 nm with
Sandell's sensitivity of 6.72 ng cm(-2). Beer's law is obeyed over the conc
entration range 0.2-5.4 ppm; the optimum concentration range is 0.5-5.0 ppm
. The method has been successfully applied to the analysis of vanadium stee
ls and minerals.