Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2019
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=42958876004 https://www.redalyc.org/journal/429/42958876004/ https://www.redalyc.org/journal/429/42958876004/html/ https://www.redalyc.org/journal/429/42958876004/42958876004.epub https://www.redalyc.org/journal/429/42958876004/movil https://doi.org/10.26850/1678-4618eqj.v44.2.p37-44 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866817111486103552 |
|---|---|
| author | Carla Maíra Bossu |
| author_facet | Carla Maíra Bossu |
| contents | Direct determination of arsenobetaine and total As in robalo fish liver and tuna fish candidate reference material by slurry sampling graphite furnace atomic absorption spectrometry (SLS-GF AAS) Carla Maíra Bossu Vivian Montes de Oca Carioni Juliana Naozuka Pedro Vitoriano de Oliveira Cassiana Seimi Nomura Química arsenic tuna fish robalo liver reference material direct chemical speciation This work describes a simple and rapid screening method for direct speciation of arsenobetaine (AsB) in tuna fish tissue and total As in tuna fish tissue and robalo liver using SLS-GF AAS. All procedures were proposed after careful optimization of pyrolysis and evaluation of chemical modifiers. Best results for total As were acquired using 25 µg Pd + 15 µg Mg + 0.1% w/v Triton X-100 in tuna fish (4.4 ± 0.3 mg kg-1) and 100 µg Pd + 0.1 % w/v Triton X-100 solution in robalo liver (10.3 ± 0.6 mg kg-1) as chemical modifiers. The direct speciation of AsB (3.6 ± 0.4 mg kg-1) in tuna fish was achieved when 5 µg Pd + 3 µg Mg + 0.1% w/v Triton X-100 was used as a chemical modifier. Accuracy was verified using a tuna fish certified reference material (CRM BCR 627), with statistically equivalent concentrations (Student’s t-test) for both total As and AsB. 2019 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42958876004 https://www.redalyc.org/journal/429/42958876004/ https://www.redalyc.org/journal/429/42958876004/html/ https://www.redalyc.org/journal/429/42958876004/42958876004.epub https://www.redalyc.org/journal/429/42958876004/movil https://doi.org/10.26850/1678-4618eqj.v44.2.p37-44 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.44 |
| format | Artículo científico |
| id | redalyc_42958876004 |
| language | en |
| publishDate | 2019 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Direct determination of arsenobetaine and total As in robalo fish liver and tuna fish candidate reference material by slurry sampling graphite furnace atomic absorption spectrometry (SLS-GF AAS) Carla Maíra Bossu Química arsenic tuna fish robalo liver reference material direct chemical speciation Direct determination of arsenobetaine and total As in robalo fish liver and tuna fish candidate reference material by slurry sampling graphite furnace atomic absorption spectrometry (SLS-GF AAS) Carla Maíra Bossu Vivian Montes de Oca Carioni Juliana Naozuka Pedro Vitoriano de Oliveira Cassiana Seimi Nomura Química arsenic tuna fish robalo liver reference material direct chemical speciation This work describes a simple and rapid screening method for direct speciation of arsenobetaine (AsB) in tuna fish tissue and total As in tuna fish tissue and robalo liver using SLS-GF AAS. All procedures were proposed after careful optimization of pyrolysis and evaluation of chemical modifiers. Best results for total As were acquired using 25 µg Pd + 15 µg Mg + 0.1% w/v Triton X-100 in tuna fish (4.4 ± 0.3 mg kg-1) and 100 µg Pd + 0.1 % w/v Triton X-100 solution in robalo liver (10.3 ± 0.6 mg kg-1) as chemical modifiers. The direct speciation of AsB (3.6 ± 0.4 mg kg-1) in tuna fish was achieved when 5 µg Pd + 3 µg Mg + 0.1% w/v Triton X-100 was used as a chemical modifier. Accuracy was verified using a tuna fish certified reference material (CRM BCR 627), with statistically equivalent concentrations (Student’s t-test) for both total As and AsB. 2019 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42958876004 https://www.redalyc.org/journal/429/42958876004/ https://www.redalyc.org/journal/429/42958876004/html/ https://www.redalyc.org/journal/429/42958876004/42958876004.epub https://www.redalyc.org/journal/429/42958876004/movil https://doi.org/10.26850/1678-4618eqj.v44.2.p37-44 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.44 |
| title | Direct determination of arsenobetaine and total As in robalo fish liver and tuna fish candidate reference material by slurry sampling graphite furnace atomic absorption spectrometry (SLS-GF AAS) |
| topic | Química arsenic tuna fish robalo liver reference material direct chemical speciation |
| url | https://www.redalyc.org/articulo.oa?id=42958876004 https://www.redalyc.org/journal/429/42958876004/ https://www.redalyc.org/journal/429/42958876004/html/ https://www.redalyc.org/journal/429/42958876004/42958876004.epub https://www.redalyc.org/journal/429/42958876004/movil https://doi.org/10.26850/1678-4618eqj.v44.2.p37-44 |