Abstract
The polarographic waves of CH2O oxidation in 2–3 M NaOH solutions containing 0.04–0.10 M (+)-tartrate are diffusion controlled: the dependences of limiting current (ilim) on the square root of the Hg column height are linear and the temperature coefficient of the limiting current is relative small, i.e., ∼2% grad–1. The anodic waves of CH2O oxidation could be used for analytical purposes. ilimis proportional to CH2O concentration in the range 2×10–4–4×10–3 M. The precision of CH2O determination is typical for DC-polarography. A RSD smaller than 3 % has been obtained for 20–200 μmol; CH2O. The method proposed is suitable for the direct determination of formaldehyde in electroless copper plating solutions containing (+)-tartrate or glycerol as Cu(II) ions ligands.
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