Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000700018 |
Resumo: | Dispersive liquid-liquid microextraction (DLLME) using ionic liquid (IL) as extraction solvent was developed as a new approach for the determination of four pyrethroid pesticides in environmental water and soil samples. High-performance liquid chromatography with ultraviolet detection (HPLC-UV) was employed on chromatographic analysis. The method is rapid, easy to operate and enviromentally-friendly. The highly toxic chlorinated solvent was replaced by the IL 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]), in which high extraction recovery and enrichment factors were obtained. The effects of IL volume, type and volume of disperser solvent, salt addition, pH and extraction time were investigated and optimized. Under optimum conditions, the method showed good linear response with correlation coefficient (R²) values in the range of 0.9943 to 0.9986. Relative standard deviation (RSD) varied from 3.9 to 10.1%. Enrichment factor, limit of detection and recovery ranged from 260 to 319, 0.94 to 1.97 µg L-1 and 89 to 98%, respectively. For real water samples, RSD ranged from 3.8 to 10.8%, and recovery from 83 to 99%. For soil sample analysis, RSD and recovery ranged from 3.7 to 8.9% and 88 to 98, respectively. |
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Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextractionionic liquid dispersive liquid-liquid microextractionpyrethroid pesticidesHPLC-UVenvironmental sampleDispersive liquid-liquid microextraction (DLLME) using ionic liquid (IL) as extraction solvent was developed as a new approach for the determination of four pyrethroid pesticides in environmental water and soil samples. High-performance liquid chromatography with ultraviolet detection (HPLC-UV) was employed on chromatographic analysis. The method is rapid, easy to operate and enviromentally-friendly. The highly toxic chlorinated solvent was replaced by the IL 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]), in which high extraction recovery and enrichment factors were obtained. The effects of IL volume, type and volume of disperser solvent, salt addition, pH and extraction time were investigated and optimized. Under optimum conditions, the method showed good linear response with correlation coefficient (R²) values in the range of 0.9943 to 0.9986. Relative standard deviation (RSD) varied from 3.9 to 10.1%. Enrichment factor, limit of detection and recovery ranged from 260 to 319, 0.94 to 1.97 µg L-1 and 89 to 98%, respectively. For real water samples, RSD ranged from 3.8 to 10.8%, and recovery from 83 to 99%. For soil sample analysis, RSD and recovery ranged from 3.7 to 8.9% and 88 to 98, respectively.Sociedade Brasileira de Química2012-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000700018Journal of the Brazilian Chemical Society v.23 n.7 2012reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532012000700018info:eu-repo/semantics/openAccessWu,TongLiu,YuYang,ZhonghuaGao,HaixiangZhou,Zhiqiangeng2012-08-03T00:00:00Zoai:scielo:S0103-50532012000700018Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2012-08-03T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
title |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
spellingShingle |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction Wu,Tong ionic liquid dispersive liquid-liquid microextraction pyrethroid pesticides HPLC-UV environmental sample |
title_short |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
title_full |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
title_fullStr |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
title_full_unstemmed |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
title_sort |
Determination of pyrethroid pesticides in environmental samples using ionic liquid dispersive liquid-liquid microextraction |
author |
Wu,Tong |
author_facet |
Wu,Tong Liu,Yu Yang,Zhonghua Gao,Haixiang Zhou,Zhiqiang |
author_role |
author |
author2 |
Liu,Yu Yang,Zhonghua Gao,Haixiang Zhou,Zhiqiang |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Wu,Tong Liu,Yu Yang,Zhonghua Gao,Haixiang Zhou,Zhiqiang |
dc.subject.por.fl_str_mv |
ionic liquid dispersive liquid-liquid microextraction pyrethroid pesticides HPLC-UV environmental sample |
topic |
ionic liquid dispersive liquid-liquid microextraction pyrethroid pesticides HPLC-UV environmental sample |
description |
Dispersive liquid-liquid microextraction (DLLME) using ionic liquid (IL) as extraction solvent was developed as a new approach for the determination of four pyrethroid pesticides in environmental water and soil samples. High-performance liquid chromatography with ultraviolet detection (HPLC-UV) was employed on chromatographic analysis. The method is rapid, easy to operate and enviromentally-friendly. The highly toxic chlorinated solvent was replaced by the IL 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]), in which high extraction recovery and enrichment factors were obtained. The effects of IL volume, type and volume of disperser solvent, salt addition, pH and extraction time were investigated and optimized. Under optimum conditions, the method showed good linear response with correlation coefficient (R²) values in the range of 0.9943 to 0.9986. Relative standard deviation (RSD) varied from 3.9 to 10.1%. Enrichment factor, limit of detection and recovery ranged from 260 to 319, 0.94 to 1.97 µg L-1 and 89 to 98%, respectively. For real water samples, RSD ranged from 3.8 to 10.8%, and recovery from 83 to 99%. For soil sample analysis, RSD and recovery ranged from 3.7 to 8.9% and 88 to 98, respectively. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000700018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000700018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532012000700018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.23 n.7 2012 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318173554475008 |