SIMULTANEOUS ANALYSIS OF SILVER PLATING BATH COMPRISING SLIVER CYANIDE, PHOSPHATE AND MERCAPTOBENZOTHIAZOLE DERIVATIVES USING A CAPILLARY ION ANALYZER

PSC (potassium silver cyanide), anionic surfactant and HPO4-2 componen ts consisting of Ag plating solutions were simultaneously analyzed wit h a capillary ion analyzer, using a phthalate buffer at pH 5.6. Detect ion of each ion was achieved using on-column indirect photometry at 25 4 nm. Quantities of PSC, HPO4-2 and mercaptobenzothiazole derivatives were found to be about 1.6 g/L, 0.6 g/L and 0.2 (v/v) percent, respect ively, in the artificial silver plating solution,compared with a stand ard solution, The three components were analyzed without affecting oth er components, such as surfactants and cyanide. This simultaneous anal ysis method for silver plating solutions is a very powerful technique for process control systems.