Flow-injection determination of copper (II) in chemical and electrochemical baths with a potentiometric differential microdetector

✍ Scribed by Liliana Olenic; Elena Hopîrtean; Liviu Olenic; Daniela Crisan

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 139 KB
• Volume: 9
• Category: Article
• ISSN: 0895-7533
• DOI: 10.1002/(sici)1098-2728(1997)9:6<305::aid-lra4>3.0.co;2-4

✦ Synopsis

A differential microdetector with two similar Cu(II) selective membranes was used for discontinuous flow potentiometric determinations of Cu(II). The influence of some factors (temperature, medium, etc.) is eliminated. The method is very simple and sensitive. The results obtained show that the errors are below 1%, thus fully meeting the practical requirements. The method correlates well with the results of the titration determination of Cu(II). The throughput was 60 samples/h. The method proposed has an important utilization in the regeneration of the baths considering the decrease in their concentrations during the metal-coating process. ᭧ 1997