Determinação espectrofotométrica em fluxo de cloro em água usando célula de longo caminho óptico e multicomutação Spectrophotometric flow determination of chlorine in water using a long pathlength optic cell and multicommutation
| Autor: | Fernanda Helena Salami, Viviane Gomes Bonifácio, Orlando Fatibello-Filho, Luiz Humberto Marcolino-Jr |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 32, Iss 1, Pp 112-115 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422009000100021 |
| Popis: | A multicommuted method for determination of chlorine in water samples using a 100-cm cell was developed. In this method, orto-Tolidine reacts with chlorine and the product was monitored at 438 nm. The analytical curve for chlorine was linear in concentration range from 1.34x10-6 to 2.01x10-5 mol L-1 with a detection limit of 9.40x10-8 mol L-1. A sampling rate of 45 h-1and a RSD of 1.0 % (n = 15) were obtained. The method was applied with success for chlorine determination in six water samples. |
| Databáze: | Directory of Open Access Journals |
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