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http://hdl.handle.net/10553/49127
| Title: | Differential pulse voltammetric determination of aniline with a carbon paste electrode modified by sepiolite | Authors: | Hernandez, L. Hernandez, P. Sosa Ferrera, Z. |
UNESCO Clasification: | 2301 química analítica | Keywords: | Physical Chemistry Analytical Chemistry Inorganic Chemistry Detection Limit Aniline |
Issue Date: | 1988 | Publisher: | 0016-1152 | Journal: | Fresenius Zeitschrift für Analytische Chemie | Abstract: | 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 | Source: | Fresenius' Zeitschrift für Analytische Chemie [ISSN 0016-1152], v. 329, p. 756-759 |
| Appears in Collections: | Artículos |
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