Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method
9 paginas, 5 tablas, 4 figuras.
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| Format: | artículo biblioteca |
| Language: | English |
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Sociedad Chilena de Química
2018
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| Subjects: | Agricultural activities, Degradation products, Pesticides, Water pollution, |
| Online Access: | http://hdl.handle.net/10261/170392 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 |
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dig-irnasa-es-10261-1703922019-05-08T11:26:27Z Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method Climent, M. José Sánchez Martín, M. Jesús Rodríguez Cruz, M. Sonia Pedreros, Pablo Urrutia, Roberto Herrero Hernández, Eliseo Ministerio de Economía y Competitividad (España) European Commission Rodríguez-Cruz, M. Sonia [0000-0001-6748-3391] Sánchez-Martín, M. Jesús [0000-0002-8304-1232] Agricultural activities Degradation products Pesticides Water pollution 9 paginas, 5 tablas, 4 figuras. In areas with agricultural activity, the excessive use of pesticides can contaminate water resources. That is why a multi-residue method based on solid-phase extraction (SPE) and gas chromatography analysis coupled to mass spectrometry (GS-MS) was used to determine eleven pesticides and five degradation products in surface water of Central Chile. The parameters that can affect the efficiency of the SPE process were optimized considering the information available in bibliography. As in other studies, the best results were obtained when 500 mL of water was pre-concentrated using Oasis HLB polymer cartridges and acetone and acetonitrile were used as solvents for the elution. To ensure good quantification, matrix-matched standards were used, providing good linearity in the studied concentration range (0.10-1.5 μg L-1), with recovery percentages > 60%, precisions < 19% and quantification limits < 0.1 μg L-1. The surface water samples were collected at the end of summer and winter seasons, considering rivers, creeks and irrigation canals of Cachapoal River basin. A percentage > 87% of the pesticides analyzed in this research were detected in more than one sampled site in both seasons. The most ubiquitous compounds were desethylterbuthylazine (DET), pyrimethanil, cyprodinil and diazinon, and the compounds detected in highest concentration were simazine and degradation products derived from triazines. Las Cabras and Tahuilla irrigation canals presented the highest concentrations of pesticides. Significant differences were found in the total concentration of pesticides for sites sampled at the end of the summer and winter season This work was partly funded by the Government of Spain (MINECO/ FEDER UE) as part of Project AGL2015-69485-R. Peer reviewed 2018-10-01T10:29:03Z 2018-10-01T10:29:03Z 2018 artículo http://purl.org/coar/resource_type/c_6501 Journal of the Chilean Chemical Society 63(2): 4023-4031 (2018) 0717-9324 http://hdl.handle.net/10261/170392 10.4067/s0717-97072018000204023 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2015-69485-R Publisher's version http://dx.doi.org/10.4067/s0717-97072018000204023 Sí open Sociedad Chilena de Química |
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España |
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ES |
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biblioteca |
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Europa del Sur |
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Biblioteca del IRNASA España |
| language |
English |
| topic |
Agricultural activities Degradation products Pesticides Water pollution Agricultural activities Degradation products Pesticides Water pollution |
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Agricultural activities Degradation products Pesticides Water pollution Agricultural activities Degradation products Pesticides Water pollution Climent, M. José Sánchez Martín, M. Jesús Rodríguez Cruz, M. Sonia Pedreros, Pablo Urrutia, Roberto Herrero Hernández, Eliseo Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| description |
9 paginas, 5 tablas, 4 figuras. |
| author2 |
Ministerio de Economía y Competitividad (España) |
| author_facet |
Ministerio de Economía y Competitividad (España) Climent, M. José Sánchez Martín, M. Jesús Rodríguez Cruz, M. Sonia Pedreros, Pablo Urrutia, Roberto Herrero Hernández, Eliseo |
| format |
artículo |
| topic_facet |
Agricultural activities Degradation products Pesticides Water pollution |
| author |
Climent, M. José Sánchez Martín, M. Jesús Rodríguez Cruz, M. Sonia Pedreros, Pablo Urrutia, Roberto Herrero Hernández, Eliseo |
| author_sort |
Climent, M. José |
| title |
Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| title_short |
Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| title_full |
Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| title_fullStr |
Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| title_full_unstemmed |
Determination of pesticides in river surface waters of Central Chile using spe-GC-MS multi-residue method |
| title_sort |
determination of pesticides in river surface waters of central chile using spe-gc-ms multi-residue method |
| publisher |
Sociedad Chilena de Química |
| publishDate |
2018 |
| url |
http://hdl.handle.net/10261/170392 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 |
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