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Title: Determination of phenol by differential pulse voltammetry with a sepiolite-modified carbon paste electrode
Authors: Hernández, L.
Hernández, P.
Sosa, Z. 
UNESCO Clasification: 2301 química analítica
Keywords: Physical Chemistry
Analytical Chemistry
Inorganic Chemistry
Detection Limit
Issue Date: 1988
Publisher: 0016-1152
Journal: Fresenius Zeitschrift für Analytische Chemie 
Abstract: The determinations of phenol is studied by means of a carbon paste electrode modified with 10% sepiolite using DPV. A 10 min preconcentration step was performed at pH 1.5 under open circuit conditions. Measurements were made in another cell by DPV with ΔE=100 mV (sweep rate = 40 mV/s) in 0.02 mol/l KNO3 medium at pH 2. Detection limits (3 σ) of 30 ng/ml were achieved for determinations in orange, lemon and cola drinks.
ISSN: 0016-1152
DOI: 10.1007/BF00467043
Source: Fresenius' Zeitschrift für Analytische Chemie [ISSN 0016-1152], v. 331, p. 525-527
Appears in Collections:Artículos

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