Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry
Slurry sampling in combination with flame atomic absorption spectrometry was employed for the direct determination of four essential trace elements, namely Cu, Fe, Mn and Zn in Antarctic krill. The effect of instrumental operating conditions and slurry sampling preparation on the analytical signal w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2000-01-01
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| Series: | Journal of the Brazilian Chemical Society |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400007 |
| _version_ | 1819148048061693952 |
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| author | Alves Flávia L. Smichowski Patricia Farías Silvia Marrero Julieta Arruda Marco A. Z. |
| author_facet | Alves Flávia L. Smichowski Patricia Farías Silvia Marrero Julieta Arruda Marco A. Z. |
| author_sort | Alves Flávia L. |
| collection | DOAJ |
| description | Slurry sampling in combination with flame atomic absorption spectrometry was employed for the direct determination of four essential trace elements, namely Cu, Fe, Mn and Zn in Antarctic krill. The effect of instrumental operating conditions and slurry sampling preparation on the analytical signal was investigated. For the determination of Cu, Fe and Zn, samples were suspended in a solution containing 2 mol L-1 HNO3. In the case of Mn, 4 mol L-1 HNO3 was necessary for the preparation of the slurry. The precision between sample replicates was better than 5%. The method was applied to the direct determination of Cu, Fe, Mn and Zn in Antarctic krill samples using aqueous reference solutions to prepare the calibration curves. The results obtained were in good agreement with those achieved by FAAS and ICP-AES after microwave-assisted wet digestion of the krill samples. The detection limits were 4.5, 1.0, 4.9 and 8.4 mug L-1 for Cu, Zn, Mn and Fe, respectively. |
| first_indexed | 2024-12-22T13:39:31Z |
| format | Article |
| id | doaj.art-b75d930001cc4c8790b63faea4c031ba |
| institution | Directory Open Access Journal |
| issn | 0103-5053 |
| language | English |
| last_indexed | 2024-12-22T13:39:31Z |
| publishDate | 2000-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Journal of the Brazilian Chemical Society |
| spelling | doaj.art-b75d930001cc4c8790b63faea4c031ba2022-12-21T18:23:57ZengSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society0103-50532000-01-01114365370Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometryAlves Flávia L.Smichowski PatriciaFarías SilviaMarrero JulietaArruda Marco A. Z.Slurry sampling in combination with flame atomic absorption spectrometry was employed for the direct determination of four essential trace elements, namely Cu, Fe, Mn and Zn in Antarctic krill. The effect of instrumental operating conditions and slurry sampling preparation on the analytical signal was investigated. For the determination of Cu, Fe and Zn, samples were suspended in a solution containing 2 mol L-1 HNO3. In the case of Mn, 4 mol L-1 HNO3 was necessary for the preparation of the slurry. The precision between sample replicates was better than 5%. The method was applied to the direct determination of Cu, Fe, Mn and Zn in Antarctic krill samples using aqueous reference solutions to prepare the calibration curves. The results obtained were in good agreement with those achieved by FAAS and ICP-AES after microwave-assisted wet digestion of the krill samples. The detection limits were 4.5, 1.0, 4.9 and 8.4 mug L-1 for Cu, Zn, Mn and Fe, respectively.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400007Antarctic krillslurryFAASICP-AES |
| spellingShingle | Alves Flávia L. Smichowski Patricia Farías Silvia Marrero Julieta Arruda Marco A. Z. Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry Journal of the Brazilian Chemical Society Antarctic krill slurry FAAS ICP-AES |
| title | Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry |
| title_full | Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry |
| title_fullStr | Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry |
| title_full_unstemmed | Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry |
| title_short | Direct analysis of Antarctic krill by slurry sampling: determination of copper, iron, manganese and zinc by flame atomic absorption spectrometry |
| title_sort | direct analysis of antarctic krill by slurry sampling determination of copper iron manganese and zinc by flame atomic absorption spectrometry |
| topic | Antarctic krill slurry FAAS ICP-AES |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400007 |
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