A novel catalytic spectrophotometric method for determination of trace cobalt has been developed.It was based on the strong catalytic effect of Co(II) on the oxidation of gallic acid by hydrogen peroxide in alkaline m...
A spectrophotometric method is suggested in order to determine the metals leached with HNO 3 on the polystyrene filter, on which air borne dust are collected with a low volume sampler.The method, which gives parallel ...