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Determination of Glycerol in Biodiesel Using a Nickel(II) Oxyhydroxide Chemically Modified Electrode by Cyclic Voltammetry
Author(s) -
Pott Marinho Ballottin Daniela,
Lataro Paim Leonardo,
Ramos Stradiotto Nelson
Publication year - 2013
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.201300090
Subject(s) - glycerol , nickel , biodiesel , cyclic voltammetry , detection limit , electrode , voltammetry , chemistry , glassy carbon , nuclear chemistry , inorganic chemistry , materials science , electrochemistry , chromatography , organic chemistry , catalysis
A glassy carbon electrode chemically modified with nickel oxyhydroxide from a nickel hexacyanoferrate (NiHCF) film was used to determine glycerol in biodiesel by cyclic voltammetry. The modified electrode exhibited a linear response to glycerol concentration in the range from 0.05 to 0.35 mmol L −1 , and a detection limit of 0.030 mmol L −1 . The glycerol concentration found in the biodiesel sample was 0.156 mmol L −1 . The method developed in this study showed a recovery of (100.3±5.0)%.