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A Novel Electrochemical Sensor Based on Printex L6 Carbon Black Carrying CuO/Cu 2 O Nanoparticles for Propylparaben Determination
Author(s) -
Goulart Lorena A.,
Guaraldo Thaís T.,
Lanza Marcos R. V.
Publication year - 2018
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201800549
Subject(s) - propylparaben , detection limit , electrochemistry , copper , carbon black , electrochemical gas sensor , nanoparticle , materials science , carbon fibers , dispersion (optics) , analytical chemistry (journal) , electrode , chemical engineering , chemistry , nanotechnology , chromatography , methylparaben , composite number , organic chemistry , preservative , metallurgy , composite material , natural rubber , physics , optics , engineering
The paper reports the development of a new sensor based on Printex L6 (CPL6) carbon black modified with copper oxides (CuO/Cu 2 O) 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/Cu 2 O 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/Cu 2 O‐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.