| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000313205 |
| ISSN: | 0100-4042 |
| Authors: | Richter, Eduardo M1 Lago, Claudimir L. do Angnes, Lucio |
| Institutions: | 1Universidade de Sao Paulo, Instituto de Quimica, Sao Paulo. Brasil |
| Year: | 2006 |
| Season: | Jul |
| Volumen: | 29 |
| Number: | 4 |
| Pages: | 862-864 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | In this work a simple and versatile procedure is described for treating water samples using small polypropylene (PP) vials (4 mL) for determining heavy metals by square wave voltammetry (SWV). This procedure involves treatment with nitric acid (0.2 mol L-1) and boiling in a water-bath (~ 100 ºC). This process is completed after one hour and allows the pretreatment of several samples simultaneously. The accuracy was estimated using addition/recovery studies and certified water sample analysis, yielding an agreement near to 100% |
| Disciplines: | Química |
| Keyword: | Química analítica, Química ambiental, Análisis de agua, Pretratamiento de muestras, Frascos de polipropileno, Metales pesados |
| Keyword: | Chemistry, Analytical chemistry, Environmental chemistry, Water analysis, Sample pretreatment, Polypropylene vials, Heavy metals |
| Full text: | Texto completo (Ver HTML) |
