Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry
An electrothermal atomic absorption (ETAAS) method has been developed for the direct determination of Si in natural waters. Measurements were carried out on previously alkalinized samples and using a mixture of Pd and Mg(NO3)2 as matrix modifier, with an ashing temperature of 1400 oC and an atomizat...
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2013-07-01
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| Series: | Journal of Applied Sciences and Environmental Management |
| Online Access: | https://www.Ajol.Info/index.php/jasem/article/view/90467 |
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| author | M El Himri A El Himri A Pastor M De La Guardia |
| author_facet | M El Himri A El Himri A Pastor M De La Guardia |
| author_sort | M El Himri |
| collection | DOAJ |
| description | An electrothermal atomic absorption (ETAAS) method has been developed
for the direct determination of Si in natural waters. Measurements were carried out on previously alkalinized samples and using a mixture of Pd and Mg(NO3)2 as matrix modifier, with an ashing temperature of 1400 oC and an atomization temperature of 2400 oC. Transversally heated pyrolitically graphite tubes, equipped with Lfvov platform and Zeeman effect correction, was employed in this study. A limit of detection of 2.6 ƒÊg/L Si was obtained
and accuracy was evaluated by analyzing two Standard Reference Material at different concentration levels, a good agreement (<5%) was obtained. This developed procedure was demonstrated of the need of using an alkaline medium for accurate Si determination by ETAAS. |
| format | Article |
| id | doaj-art-fbcc0a4cb7e2493089766935c8afc576 |
| institution | Kabale University |
| issn | 2659-1502 2659-1499 |
| language | English |
| publishDate | 2013-07-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj-art-fbcc0a4cb7e2493089766935c8afc5762025-02-08T19:52:16ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992013-07-01171Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometryM El HimriA El HimriA PastorM De La GuardiaAn electrothermal atomic absorption (ETAAS) method has been developed for the direct determination of Si in natural waters. Measurements were carried out on previously alkalinized samples and using a mixture of Pd and Mg(NO3)2 as matrix modifier, with an ashing temperature of 1400 oC and an atomization temperature of 2400 oC. Transversally heated pyrolitically graphite tubes, equipped with Lfvov platform and Zeeman effect correction, was employed in this study. A limit of detection of 2.6 ƒÊg/L Si was obtained and accuracy was evaluated by analyzing two Standard Reference Material at different concentration levels, a good agreement (<5%) was obtained. This developed procedure was demonstrated of the need of using an alkaline medium for accurate Si determination by ETAAS.https://www.Ajol.Info/index.php/jasem/article/view/90467 |
| spellingShingle | M El Himri A El Himri A Pastor M De La Guardia Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry Journal of Applied Sciences and Environmental Management |
| title | Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| title_full | Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| title_fullStr | Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| title_full_unstemmed | Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| title_short | Influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| title_sort | influence of the measurement medium and matrix modifiers on the determination of silicon in waters by graphite furnace atomic absorption spectrometry |
| url | https://www.Ajol.Info/index.php/jasem/article/view/90467 |
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