Factor analysis of the tungsten(VI)-rutin system

Factor analysis of the tungsten(VI)-rutin system has shown the equilibrium constants for formation of the 1:2 and 1:1 tungsten-rutin complexes to be very different, and that the presence of the 1:1 complex does not significantly reduce the precision of tungsten determination within the normal range of analysis. Calculated spectra of the two complexes are presented.