Photometric determination of tungsten in rocks with trihydroxyfluorones.
The interaction of tungsten(VI) with a series of 2,3,7-trihydroxyfluorones in the presence of cationic and non-ionic surfacants has been studied. Optimal conditions for the formation of the complexes and their spectrophotometric determination have been found. Possible mechanisms for the effect of the surfactants are suggested. The method developed has been applied to determination of trace tungsten in rocks and silts.
Nazarenko
V A
VA
A.V. Bogatsky Physico-Chemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa, USSR.
Antonovich
V P
VP
Veschikova
N A
NA