Differential pulse voltammetric determination of aniline with a carbon paste electrode modified by sepiolite

Título:	Differential pulse voltammetric determination of aniline with a carbon paste electrode modified by sepiolite
Autores/as:	Hernandez, L. Hernandez, P. Sosa Ferrera, Z.
Clasificación UNESCO:	2301 química analítica
Palabras clave:	Physical Chemistry Analytical Chemistry Inorganic Chemistry Detection Limit Aniline
Fecha de publicación:	1988
Editor/a:	0016-1152
Publicación seriada:	Fresenius Zeitschrift für Analytische Chemie
Resumen:	The determination of aniline by means of a carbon paste electrode (CPE) modified with 10% sepiolite was studied using differential pulse voltammetry. The best pre-concentration was achieved at pH 6.9 over 5 min and the bestip in the measuring cell was obtained at pH 1.5 using ΔE = 100 mV and a scan rate of 40 mV/s. Under these conditions detection limits (10 σ) of 15 ng/ ml were obtained. The method was applied to different beverages without the need for prior separation.
URI:	http://hdl.handle.net/10553/49127
ISSN:	0016-1152
DOI:	10.1007/BF00556910
Fuente:	Fresenius' Zeitschrift für Analytische Chemie [ISSN 0016-1152], v. 329, p. 756-759
Colección:	Artículos

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