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Updated: Apr 28, 2026

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes
Published on: January 30, 2015
Development of poly(3-aminophenylboronic acid) modified graphite rod electrode suitable for fluoride determination
Hakan Ciftçi1, Yasemin Oztekin2, Uğur Tamer3
1Kirikkale University, Kirikkale Vocational High School, Department of Chemistry and Chemical Processing Technologies, Kirikkale, Turkey; Vilnius University, Faculty of Chemistry, NanoTechnas - Centre of Nanotechnology and Materials Science, Vilnius, Lithuania.
Abstract:
Poly(3-aminophenylboronic acid), (PAPBA) film was formed on the graphite rod surface by potential cycling. The PAPBA-modified graphite rod (PAPBA/GR) electrode prepared in this way was used for potentiometric fluoride determination. The linear calibration range was from 5×10(-4) to 5×10(-2)M with the slope of the linear part of the calibration curve of 42.5mV/logC. No interference effect of the most common ions such as sodium, potassium, chloride, nitrate, iodide, calcium, zinc, aluminum, sulfate and sorbitol was observed during electrochemical determination of fluoride. On the other hand, the PAPBA/GR electrode showed not only good sensitivity and selectivity, but also relatively rapid response to changes of analyte concentrations in the range of 20s. The sensor was successfully applied for fluoride determination in real sample - toothpaste.
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