Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement
Two atomizers were compared: an N2O-C2H2 flame and a stabilized U-shaped DC arc with aerosol supply. Both the high plasma temperature and the reducing atmosphere obtained by acetylene addition to the argon stream substantially increase the sensitivity of boron determination by atomic absorp...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2001-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2001/0352-51390108535P.pdf |
| _version_ | 1831599144860385280 |
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| author | Pavlović Mirjana S. Savović Jelena J. Marinković Momir |
| author_facet | Pavlović Mirjana S. Savović Jelena J. Marinković Momir |
| author_sort | Pavlović Mirjana S. |
| collection | DOAJ |
| description | Two atomizers were compared: an N2O-C2H2 flame and a stabilized U-shaped DC
arc with aerosol supply. Both the high plasma temperature and the reducing
atmosphere obtained by acetylene addition to the argon stream substantially
increase the sensitivity of boron determination by atomic absorption
spectroscopy (AAS) when the arc atomizer is used. The results were compared
with those for silicon as a control element. The experimental characteristic
concentrations for both elements were compared with the computed values. The
experimentally obtained characteristic concentration for boron when using
the arc atomizer was in better agreement with the calculated value. It was
estimated that the influence of stable monoxide formation on the sensitivity
for both elements was about the same, but reduction of analyte and formation
of non-volatile carbide particles was more important for boron, which is the
main reason for the low sensitivity of boron determination using a flame
atomizer. The use of an arc atomizer suppresses this interference and
significantly improves the sensitivity of the determination. |
| first_indexed | 2024-12-18T14:18:27Z |
| format | Article |
| id | doaj.art-78cf10dc5b624323b88242da7331d9c9 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-12-18T14:18:27Z |
| publishDate | 2001-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-78cf10dc5b624323b88242da7331d9c92022-12-21T21:04:56ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212001-01-0166853554210.2298/JSC0108535P0352-51390108535PSome problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvementPavlović Mirjana S.0Savović Jelena J.1Marinković Momir2Vinča Institute of Nuclear Sciences, Laboratory of Physical Chemistry, BelgradeVinča Institute of Nuclear Sciences, Laboratory of Physical Chemistry, BelgradeVinča Institute of Nuclear Sciences, Laboratory of Physical Chemistry, BelgradeTwo atomizers were compared: an N2O-C2H2 flame and a stabilized U-shaped DC arc with aerosol supply. Both the high plasma temperature and the reducing atmosphere obtained by acetylene addition to the argon stream substantially increase the sensitivity of boron determination by atomic absorption spectroscopy (AAS) when the arc atomizer is used. The results were compared with those for silicon as a control element. The experimental characteristic concentrations for both elements were compared with the computed values. The experimentally obtained characteristic concentration for boron when using the arc atomizer was in better agreement with the calculated value. It was estimated that the influence of stable monoxide formation on the sensitivity for both elements was about the same, but reduction of analyte and formation of non-volatile carbide particles was more important for boron, which is the main reason for the low sensitivity of boron determination using a flame atomizer. The use of an arc atomizer suppresses this interference and significantly improves the sensitivity of the determination.http://www.doiserbia.nb.rs/img/doi/0352-5139/2001/0352-51390108535P.pdfboronatomic absorption spectroscopycharacteristic concentrationdc arcplasma |
| spellingShingle | Pavlović Mirjana S. Savović Jelena J. Marinković Momir Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement Journal of the Serbian Chemical Society boron atomic absorption spectroscopy characteristic concentration dc arcplasma |
| title | Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| title_full | Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| title_fullStr | Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| title_full_unstemmed | Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| title_short | Some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| title_sort | some problems connected with boron determination by atomic absorption spectroscopy and the sensitivity improvement |
| topic | boron atomic absorption spectroscopy characteristic concentration dc arcplasma |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2001/0352-51390108535P.pdf |
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