Evaluation of industrial cutting fluids using electrochemical impedance spectroscopy and multivariate data analysis
2012 (English)In: Talanta: The International Journal of Pure and Applied Analytical Chemistry, ISSN 0039-9140, E-ISSN 1873-3573, Vol. 97, 468-472 p.Article in journal (Refereed) Published
In this paper, we explore the combination of electrochemical impedance spectroscopy (EIS) and multivariate data analysis to evaluate the concentration and pH of an industrial cutting fluid. These parameters are vital for the performance of for instance tooling processes, and an on-line monitoring system would be very beneficial. It is shown that both the total impedance and the phase angle contain information that allows the simultaneous discrimination of the concentration and the pH. The final evaluation was made with a regression model, namely partial least squares (PLS). This approach provided a way to quickly and simply find the correlation between EIS data and the sought parameters. The results from the measurements showed the possibility to predict the concentration and pH level, indicating the potential of this method for on-line measurements.
Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 97, 468-472 p.
National CategoryInorganic Chemistry
IdentifiersURN: urn:nbn:se:liu:diva-14888DOI: 10.1016/j.talanta.2012.05.001ISI: 000308268800071OAI: oai:DiVA.org:liu-14888DiVA: diva2:25503
funding agencies|Carl Trygger Foundation (CTS)||Swedish Sensor Center (S-SENCE)||2008-09-292008-09-292012-10-05