Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
An evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absor...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2008-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008 |
| _version_ | 1818057781327953920 |
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| author | Miguel Murillo Nereida Carrión Jorge Colmenares Juan Romero Gladys Alvarado Manuel Ríos Freddy Angulo |
| author_facet | Miguel Murillo Nereida Carrión Jorge Colmenares Juan Romero Gladys Alvarado Manuel Ríos Freddy Angulo |
| author_sort | Miguel Murillo |
| collection | DOAJ |
| description | An evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absorbance signals was carried out. A hydrogen-argon flame was used. An improvement of the analytical sensitivity relative to the conventional bead nebulizer used in flame AA was obtained (2 (As) and 4.8 (Se) µg L-1). Detection limits (3σb) of 1 (As) and 1.3 (Se) µg L-1 were obtained. Accuracy of the method was checked by analyzing an oyster tissue reference material. |
| first_indexed | 2024-12-10T12:50:11Z |
| format | Article |
| id | doaj.art-660a803eb4374c36997cf6f06b4aeb09 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-10T12:50:11Z |
| publishDate | 2008-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-660a803eb4374c36997cf6f06b4aeb092022-12-22T01:48:18ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642008-01-013161315131810.1590/S0100-40422008000600008Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometryMiguel MurilloNereida CarriónJorge ColmenaresJuan RomeroGladys AlvaradoManuel RíosFreddy AnguloAn evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absorbance signals was carried out. A hydrogen-argon flame was used. An improvement of the analytical sensitivity relative to the conventional bead nebulizer used in flame AA was obtained (2 (As) and 4.8 (Se) µg L-1). Detection limits (3σb) of 1 (As) and 1.3 (Se) µg L-1 were obtained. Accuracy of the method was checked by analyzing an oyster tissue reference material.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008nebulizer-hydride generationarsenicselenium |
| spellingShingle | Miguel Murillo Nereida Carrión Jorge Colmenares Juan Romero Gladys Alvarado Manuel Ríos Freddy Angulo Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry Química Nova nebulizer-hydride generation arsenic selenium |
| title | Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry |
| title_full | Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry |
| title_fullStr | Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry |
| title_full_unstemmed | Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry |
| title_short | Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry |
| title_sort | design and evaluation of a continuous flow integrated nebulizer hydride generator for flame atomic absorption spectrometry |
| topic | nebulizer-hydride generation arsenic selenium |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008 |
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