Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method
A hydride-generation atomic absorption spectroscopy (AAS) method was developed for the analysis of total Hg in liquid matrices of mercury-rich plants and mine tailings samples. The detection limit for this method was as low as 11.4 ng/mL. The reproducibility of the mercury signals (in terms of relat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Instituto de Tecnologia do Paraná (Tecpar)
2009-08-01
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| Series: | Brazilian Archives of Biology and Technology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400019 |
| _version_ | 1828340639877562368 |
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| author | Fábio Netto Moreno Christopher Anderson Robert Stewart Brett Robinson |
| author_facet | Fábio Netto Moreno Christopher Anderson Robert Stewart Brett Robinson |
| author_sort | Fábio Netto Moreno |
| collection | DOAJ |
| description | A hydride-generation atomic absorption spectroscopy (AAS) method was developed for the analysis of total Hg in liquid matrices of mercury-rich plants and mine tailings samples. The detection limit for this method was as low as 11.4 ng/mL. The reproducibility of the mercury signals (in terms of relative standard deviation) was 4.6%. Accuracy of the method was verified by analyses of deionised water samples spiked with HgCl2 and HgNO3. Recovery values for total mercury ranged from 88.5 to 94.3% for both mercury species added. An external certified laboratory validated the analytical method with a maximum discrepancy of 15 %. Optimal analytical response of the equipment for Hg analysis of plant samples was achieved when the sample volume added to the reaction vessel was 0.25 mL.<br>Um protocolo para análise do mercúrio (Hg) em amostras líquidas de solo e tecidos vegetais enriquecidos com Hg foi desenvolvido com base na técnica de geração de hidretos. O limite de detecção para este método foi de 11.4 ng/mL. A reproducibilidade do método (calculado com base no desvio padrão relativo) foi de 4.6%. A precisão do método foi verificada pela análise de amostras de água deionizada contendo HgCl2 and HgNO3. Os valores de mercúrio total recuperados variaram de 88.5 a 94.3% para ambas as espécies testadas. O método analítico foi validado por um laboratório externo certificado com discrepância máxima de 15 %. O desempenho analítico do equipamento para análise do mercúrio em tecidos vegetais foi considerado ótimo para volumes de amostra de até 0.25 mL. |
| first_indexed | 2024-04-13T22:59:01Z |
| format | Article |
| id | doaj.art-cfb13c478b674d64b1e151adbb0d7c83 |
| institution | Directory Open Access Journal |
| issn | 1516-8913 1678-4324 |
| language | English |
| last_indexed | 2024-04-13T22:59:01Z |
| publishDate | 2009-08-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-cfb13c478b674d64b1e151adbb0d7c832022-12-22T02:25:54ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242009-08-0152495396010.1590/S1516-89132009000400019Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS methodFábio Netto MorenoChristopher AndersonRobert StewartBrett RobinsonA hydride-generation atomic absorption spectroscopy (AAS) method was developed for the analysis of total Hg in liquid matrices of mercury-rich plants and mine tailings samples. The detection limit for this method was as low as 11.4 ng/mL. The reproducibility of the mercury signals (in terms of relative standard deviation) was 4.6%. Accuracy of the method was verified by analyses of deionised water samples spiked with HgCl2 and HgNO3. Recovery values for total mercury ranged from 88.5 to 94.3% for both mercury species added. An external certified laboratory validated the analytical method with a maximum discrepancy of 15 %. Optimal analytical response of the equipment for Hg analysis of plant samples was achieved when the sample volume added to the reaction vessel was 0.25 mL.<br>Um protocolo para análise do mercúrio (Hg) em amostras líquidas de solo e tecidos vegetais enriquecidos com Hg foi desenvolvido com base na técnica de geração de hidretos. O limite de detecção para este método foi de 11.4 ng/mL. A reproducibilidade do método (calculado com base no desvio padrão relativo) foi de 4.6%. A precisão do método foi verificada pela análise de amostras de água deionizada contendo HgCl2 and HgNO3. Os valores de mercúrio total recuperados variaram de 88.5 a 94.3% para ambas as espécies testadas. O método analítico foi validado por um laboratório externo certificado com discrepância máxima de 15 %. O desempenho analítico do equipamento para análise do mercúrio em tecidos vegetais foi considerado ótimo para volumes de amostra de até 0.25 mL.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400019hydride-generationmercuryplant and mine tailingssodium borohydride (NaBH4)phytoextraction |
| spellingShingle | Fábio Netto Moreno Christopher Anderson Robert Stewart Brett Robinson Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method Brazilian Archives of Biology and Technology hydride-generation mercury plant and mine tailings sodium borohydride (NaBH4) phytoextraction |
| title | Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method |
| title_full | Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method |
| title_fullStr | Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method |
| title_full_unstemmed | Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method |
| title_short | Analysis of Mercury-Rich plants and mine tailings using the Hydride-Generation AAS method |
| title_sort | analysis of mercury rich plants and mine tailings using the hydride generation aas method |
| topic | hydride-generation mercury plant and mine tailings sodium borohydride (NaBH4) phytoextraction |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400019 |
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