Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry
A sequential injection analysis system based on the formation of the cation FeSO4+ and the spectrophotometric measuring of the absorbance at 355 nm has been developed for the determination of sulphate in wastewaters. The main interferents were also evaluated. The proposed system is fully automatized and is able to monitor sulphate in samples. The relative standard deviation (RSD) obtained was smaller than 2.4%. The linearity of response was obtained between 10 and 1000 mg L-1. The sampling rate was 72 samples per hour.
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Sociedade Brasileira de Química
2000
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oai:scielo:S0103-505320000002000122000-10-23Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometryLapa,Rui A. S.Lima,José L. F. C.Pinto,Ivone V. O. S. flow system spectrophotometric analysis sequential injection analysis sulphate A sequential injection analysis system based on the formation of the cation FeSO4+ and the spectrophotometric measuring of the absorbance at 355 nm has been developed for the determination of sulphate in wastewaters. The main interferents were also evaluated. The proposed system is fully automatized and is able to monitor sulphate in samples. The relative standard deviation (RSD) obtained was smaller than 2.4%. The linearity of response was obtained between 10 and 1000 mg L-1. The sampling rate was 72 samples per hour.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.11 n.2 20002000-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200012en10.1590/S0103-50532000000200012 |
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Brasil |
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English |
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Digital |
| author |
Lapa,Rui A. S. Lima,José L. F. C. Pinto,Ivone V. O. S. |
| spellingShingle |
Lapa,Rui A. S. Lima,José L. F. C. Pinto,Ivone V. O. S. Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| author_facet |
Lapa,Rui A. S. Lima,José L. F. C. Pinto,Ivone V. O. S. |
| author_sort |
Lapa,Rui A. S. |
| title |
Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| title_short |
Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| title_full |
Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| title_fullStr |
Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| title_full_unstemmed |
Sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| title_sort |
sequential injection analysis determination of sulphate in wastewaters by ultraviolet-spectrophotometry |
| description |
A sequential injection analysis system based on the formation of the cation FeSO4+ and the spectrophotometric measuring of the absorbance at 355 nm has been developed for the determination of sulphate in wastewaters. The main interferents were also evaluated. The proposed system is fully automatized and is able to monitor sulphate in samples. The relative standard deviation (RSD) obtained was smaller than 2.4%. The linearity of response was obtained between 10 and 1000 mg L-1. The sampling rate was 72 samples per hour. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2000 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200012 |
| work_keys_str_mv |
AT laparuias sequentialinjectionanalysisdeterminationofsulphateinwastewatersbyultravioletspectrophotometry AT limajoselfc sequentialinjectionanalysisdeterminationofsulphateinwastewatersbyultravioletspectrophotometry AT pintoivonevos sequentialinjectionanalysisdeterminationofsulphateinwastewatersbyultravioletspectrophotometry |
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1756403129395445760 |