Figure 6. pH dependence of MWCNT/alizarin/Nafion-SPE. Solid line: pH 7; dashed line: pH 4; dotted line: pH 1. Numbers refer to the above reaction scheme. The arrows indicate the two oxidation reactions (1) and (2)

From

Monitoring pH Using Alizarin-modified Commercial Screen-printed Electrodes

Achim Habekost

World Journal of Chemical Education. 2020, 8(4), 163-169 doi:10.12691/wjce-8-4-4