| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000196324 |
| ISSN: | 0100-4042 |
| Authors: | Moreno, Ruben G.M1 Oliveira, Elisabeth de Oliveira, Pedro V Pedrotti, Jairo J |
| Institutions: | 1Universidade Presbiteriana Mackenzie, Faculdade de Ciencias Biologicas, Exatas e Experimentais, Sao Paulo. Brasil |
| Year: | 2001 |
| Season: | May-Jun |
| Volumen: | 24 |
| Number: | 3 |
| Pages: | 404-407 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | A flow cell assembled on the original geometry of a graphite tube to achieve permanent chemical modifier is proposed. The graphite tube operates as the working electrode. A stainless steel tube, positioned downstream from the working electrode, was used as the auxiliary electrode. The potential value applied on the graphite electrode was measured against a micro reference electrode (Ag/AgCl) inserted into the auxiliary electrode. Palladium solutions in acetate buffer (100 mmol L-1, pH = 4.8), flowing at 0.5 mL min-1 for 60 min was used to perform the electrochemical modification. A mercury solution (1 ng) was used to evaluate the performance of the permanent palladium modifier |
| Disciplines: | Química |
| Keyword: | Química analítica, Electroquímica, Celdas electroquímicas, Grafito, Absorción atómica, Modificador permanente |
| Keyword: | Chemistry, Analytical chemistry, Electrochemical, Electrochemical cell, Graphite, Atomic absorption, Permanent modifier |
| Full text: | Texto completo (Ver HTML) |
