Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto
In this study, a method of solid-liquid extraction and purification at low temperature (SLE-PLT) to determine 16 polycyclic aromatic hydrocarbons (PAHs) in sewage sludge was optimized and validated. The analyses were performed by HPLC-UV. The extraction phase, homogenization procedure, influence of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2014-06-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000300004&lng=en&tlng=en |
| _version_ | 1819143395338092544 |
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| author | Érica Soares Barbosa Gabriela Fonseca Evangelista Emanuella Mesquita Pimenta Flaviano Oliveira Silvério Gevany Paulino de Pinho |
| author_facet | Érica Soares Barbosa Gabriela Fonseca Evangelista Emanuella Mesquita Pimenta Flaviano Oliveira Silvério Gevany Paulino de Pinho |
| author_sort | Érica Soares Barbosa |
| collection | DOAJ |
| description | In this study, a method of solid-liquid extraction and purification at low temperature (SLE-PLT) to determine 16 polycyclic aromatic hydrocarbons (PAHs) in sewage sludge was optimized and validated. The analyses were performed by HPLC-UV. The extraction phase, homogenization procedure, influence of pH, ionic strength and clean-up of the extracts were optimized. Recoveries were higher than 63.4% for 11 PAHs. The correlation coefficients were greater than 0.99 and limits of detection and quantitation were less than 0.060 and 0.15 µg g-1, respectively. These values were lower than the maximum residue limits of PAHs established by European legislation. SLE-PLT proved a more practical, economical method with fewer steps compared to Soxhlet extraction (reference method) for PAHs in sewage sludge. |
| first_indexed | 2024-12-22T12:25:33Z |
| format | Article |
| id | doaj.art-3ea2cf321169432da412aa04956dfe95 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-12-22T12:25:33Z |
| publishDate | 2014-06-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-3ea2cf321169432da412aa04956dfe952022-12-21T18:25:49ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642014-06-0137340441010.5935/0100-4042.20140068S0100-40422014000300004Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgotoÉrica Soares Barbosa0Gabriela Fonseca Evangelista1Emanuella Mesquita Pimenta2Flaviano Oliveira Silvério3Gevany Paulino de Pinho4Universidade Federal de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisIn this study, a method of solid-liquid extraction and purification at low temperature (SLE-PLT) to determine 16 polycyclic aromatic hydrocarbons (PAHs) in sewage sludge was optimized and validated. The analyses were performed by HPLC-UV. The extraction phase, homogenization procedure, influence of pH, ionic strength and clean-up of the extracts were optimized. Recoveries were higher than 63.4% for 11 PAHs. The correlation coefficients were greater than 0.99 and limits of detection and quantitation were less than 0.060 and 0.15 µg g-1, respectively. These values were lower than the maximum residue limits of PAHs established by European legislation. SLE-PLT proved a more practical, economical method with fewer steps compared to Soxhlet extraction (reference method) for PAHs in sewage sludge.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000300004&lng=en&tlng=enbiosolidsSLE-PLTextraction methods. |
| spellingShingle | Érica Soares Barbosa Gabriela Fonseca Evangelista Emanuella Mesquita Pimenta Flaviano Oliveira Silvério Gevany Paulino de Pinho Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto Química Nova biosolids SLE-PLT extraction methods. |
| title | Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto |
| title_full | Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto |
| title_fullStr | Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto |
| title_full_unstemmed | Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto |
| title_short | Otimização e validação da extração sólido-líquido e purificação em baixa temperatura de HPAs em lodo de esgoto |
| title_sort | otimizacao e validacao da extracao solido liquido e purificacao em baixa temperatura de hpas em lodo de esgoto |
| topic | biosolids SLE-PLT extraction methods. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000300004&lng=en&tlng=en |
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