On-line Resolution For Overlapped Polarographic Peaks Of Polymetallic Ion And Its Application

On-line analyzer for polymetallic ion concentration is an urgently needed instrument for the research of modern non-ferrous metallurgy and its process control. Polarography is widely adopted in on-line analyer for polymetallic ion concentration because of its high sensitivity and rapid analysis, however, overlapped polarographic peaks of polymetallic ion is a bottleneck for application. Therefore, On-line Resolution for Overlapped Polarographic Peaks of Polymetallic Ion and Its Application has been studied. The novel research is shown:1) An efficient analytical model is reconstructed to simply the Sevick function by integral and Taylor transformation. The model is suitable for both the accurate and fast computation in on-line overlapped polarographic peaks resolution.2) An on-line parameter identification method for polargraphic curve is proposed, the initial values are obtained from the prior knowledge of polargraphic curve, L-M is selected as identification method, which can improve success rate and shorten time of identification.3) The efficient analytical model is used to on-line resolute overlapped polarographic peaks. Based on the curve fitting and the efficient analytical model as the sub-model of overlapped peaks, The the cadmium-cobalt-zinc overlapped polarographic peaks are accurated and fast resoluted under high concentration ratio among polymetallic ion.