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http://hdl.handle.net/10553/49129
| Título: | Determination of phenol by differential pulse voltammetry with a sepiolite-modified carbon paste electrode | Autores/as: | Hernández, L. Hernández, P. Sosa, Z. |
Clasificación UNESCO: | 2301 química analítica | Palabras clave: | Physical Chemistry Analytical Chemistry Phenol Inorganic Chemistry Detection Limit |
Fecha de publicación: | 1988 | Editor/a: | 0016-1152 | Publicación seriada: | Fresenius Zeitschrift für Analytische Chemie | Resumen: | 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 | Fuente: | Fresenius' Zeitschrift für Analytische Chemie [ISSN 0016-1152], v. 331, p. 525-527 |
| Colección: | Artículos |
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