|Title:||Determination of phenol by differential pulse voltammetry with a sepiolite-modified carbon paste electrode||Authors:||Hernández, L.
|UNESCO Clasification:||2301 química analítica||Keywords:||Physical Chemistry
|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.||URI:||http://hdl.handle.net/10553/49129||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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