Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1170559 | Analytica Chimica Acta | 2007 | 5 Pages |
Abstract
The concentration of polyacrylate (PA) used as a scale inhibitor was potentiometrically determined with a solid state copper ion-selective electrode after addition of Cu2+ as a probe. While the conventional methods monitor only the total concentration of PA, the proposed method measures the free, “effective” concentration of PA in equilibrium with species like Ca2+ and CaCO3. The slope of a potential response to PA was â40 mV decadeâ1 and the limit of detection was 10â6.3 M (= mol dmâ3) at a probe concentration of 10â6 M. The system could be used to control the PA concentration just enough to prevent the scale formation in various circulating water systems.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Akio Yuchi, Yasumasa Gotoh, Shinsuke Itoh,