Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/191735
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Comparative study of methodologies for the analysis of organochlorinated compounds in powdered full-fat milk. I. PCBs |
Autor: | Ramos, Lourdes CSIC ORCID ; Hernández, Luis M.; González Carlos, María José CSIC ORCID | Palabras clave: | Milk Analysis PCBs Extraction |
Fecha de publicación: | 1997 | Editor: | Taylor & Francis | Citación: | International Journal of Environmental Analytical Chemistry 71(2): 119-136 (1997) | Resumen: | The efficiency of various methods of extraction used for the determination of lipids and PCB levels of powdered full-fat milk is compared using identical milk samples and the same clean-up and quantification procedures. The solid-liquid procedure provides the best extraction and is the easiest to use and standarize. Silica gel from Bio-Rad and 400 ml of acetone:hexane (1:1, v:v) gives the greatest efficiency for the recovery of the PCBs. The coefficient of variation associated with the determination of PCBs and the lipids extracted from powdered milk using this methodology are below 7,3% and 1.8%, respectively, lower than those found using other extraction methods. These results show that it is not necessary to extract total lipids in order to determine PCB content. Extraction of apolar lipids alone can yield close to 100% of PCB content, and this approach simplifies the following clean-up steps. | The efficiency of various methods of extraction used for the determination of lipids and PCB levels of powdered full-fat milk is compared using identical milk samples and the same clean-up and quantification procedures. The solid-liquid procedure provides the best extraction and is the easiest to use and standardize. Silica gel from Bio-Rad and 400 ml of acetone:hexane (1:1, v:v) gives the greatest efficiency for the recovery of the PCBs. The coefficient of variation associated with the determination of PCBs and the lipids extracted from powdered milk using this methodology are below 7.3% and 1.8%, respectively, lower than those found using other extraction methods. These results show that it is not necessary to extract total lipids in order to determine PCB content. Extraction of apolar lipids alone can yield close to 100% of PCB content, and this approach simplifies the following clean-up steps. | URI: | http://hdl.handle.net/10261/191735 | DOI: | 10.1080/03067319808032622 | Identificadores: | doi: 10.1080/03067319808032622 issn: 0306-7319 e-issn: 1029-0397 |
Aparece en las colecciones: | (IQOG) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
5
checked on 13-abr-2024
WEB OF SCIENCETM
Citations
5
checked on 23-feb-2024
Page view(s)
237
checked on 17-abr-2024
Download(s)
26
checked on 17-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.