Op. Shvoeva et al., The 4-(2-pyridylazo)resorcinol hydrogen peroxide fibrous sorbent filled with the AB-17 system as an optical sensor for vanadium(V), J ANALYT CH, 54(1), 1999, pp. 35-39
The vanadium(V)-4-(2-pyridylazo)resorcinol-h peroxide system was studied fo
r the development of an optical sensor for vanadium. Vanadium(V) was adsorb
ed on the solid phase of a fibrous material filled with the AB-17 anion exc
hanger from a weakly acidic solution containing hydrogen peroxide. Next, it
was determined with 4-(2-pyridylazo)resorcinol by diffuse reflection spect
roscopy. The limit of detection is 0.5 mu g/L. A procedure for determining
vanadium in fresh water was developed.