A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu2O Nanoparticles for Propylparaben Determination

Lorena A. Goulart, Thais Tasso Guaraldo, Marcos Roberto de Vasconcelos Lanza

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The paper reports the development of a new sensor based on Printex L6 (CPL6) carbon black modified with copper oxides (CuO/Cu2O) nanoparticles and its application towards the determination of Propylparaben (PP). In fact, it is the first report of its kind in the literature. The sensor was produced through the dispersion of CPL6 in dimethylformamide on glassy carbon electrode surface followed by CuO/Cu2O electrodeposition. The conditions of electrodeposition investigated included time and solution concentration of Cu (II). Morphological, structural and electrochemical characterizations of the sensor were performed. Under optimal conditions, wide linear range (1.0 to 35.0 μmol L−1) was obtained in the detection of PP. The detection limit obtained was 0.46 μmol L−1 (S/N=3). The CuO/Cu2O-CPL6/GCE sensor was found to be as sensitive as the high performance liquid chromatography in the determination of PP in both cosmetic and river water samples, in addition to being reproducible and stable.
Original languageEnglish
Pages (from-to)2967-2976
Number of pages10
JournalElectroanalysis
Volume30
Issue number12
Early online date22 Oct 2018
DOIs
Publication statusPublished - Dec 2018
Externally publishedYes

Keywords

  • Copper oxide nanoparticles
  • Carbon black
  • Printex L6 carbon
  • Sensor
  • Propylparaben

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