Synergic extraction and spectrophotometric determination of vanadium(V) as ternary complexes with N-hydroxy-N-N'-diarylbenzamidines and anisaldehyde.
N-Hydroxy-N,N'-diarylbenzamidines react with vanadium(V) in anisaldehyde medium to form 1:2:1 (metal:hydroxyamidine:anisaldehyde) greenish-blue complexes over a wide pH range in chloroform solution. On the basis of the strong synergistic effect in formation of these ternary complexes an extraction-photometric method for microgram amounts of vanadium(V) has been developed and applied to standard steel samples.
Kharsan
R S
RS
Department of Chemistry, Ravishankar University, Raipur (MP), India.
Patel
K S
KS
Mishra
R K
RK