Ibm Pc and Pc/At Differential Pulse Polarograph
Original Publication Date: 1988-Sep-01
Included in the Prior Art Database: 2005-Feb-15
A personal computer is adapted to perform differential pulse polarography for the automatic component analysis of plating and/or etching baths. An automatic monitor incorporates the instrumentation for the electrochemical technique of differential pulse polarography. An electrode in an electrochemical cell containing the sample bath solution is potentiostatted with a slow ramp and superimposed step voltage. The resultant current is then sampled immediately before the step and before the end of the step. The difference of these two values yields a current which is directly proportional to the concentration of the active species in the sample solution. Since the technique is differential, differential pulse polargraphy is particularly well suited for analyzing multicomponent systems.