Publicação
Monitoring natural organic matter in surface water by UV spectroscopy : effects of calcium, magnesium and pH value
| Resumo: | The aim of this study was to evaluate the effects of dissolved magnesium and calcium ions on the determination of humic substances in water by spectrophotometry at 254 nm. Quantifications were carried out for different pH values, both with and without filtration of the samples. The smallest effects were observed for unfiltered samples and neutral pH values. |
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| Autores principais: | Rodrigues, A. L. |
| Outros Autores: | Nogueira, R.; Janknecht, P.; Brito, A. G. |
| Assunto: | Natural organic matter Fresh water pH Magnesium Calcium Spectrophotometry |
| Ano: | 2006 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | The aim of this study was to evaluate the effects of dissolved magnesium and calcium ions on the determination of humic substances in water by spectrophotometry at 254 nm. Quantifications were carried out for different pH values, both with and without filtration of the samples. The smallest effects were observed for unfiltered samples and neutral pH values. |
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