English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/12296
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 17 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Biomonitoring Human Exposure to Organohalogenated Substances by Measuring Urinary Chlorophenols Using a High-Throughput Screening (HTS) Immunochemical Method

AutorNichkova, Mikaela; Marco, María Pilar
Palabras claveOrganohalogenated Substances
Urinary Chlorophenols
(HTS) Immunochemical Method
HTS-IS-SPE−ELISA
Efficient method
Fecha de publicación1-abr-2006
EditorAmerican Chemical Society
CitaciónEnvironmental Health Perspectives 40(7): 2469-2477 (2006)
ResumenThe widespread contamination of the environment by persistent organochlorinated substances is well-known. High-throughput immunochemical methods may improve routine assessment of the exposure of the population to these chemicals by analyzing urinary biomarkers. Trichlorophenols (TCP) have often been considered as biomarkers of many organochlorinated compounds. With the aim to assess exposure of the population to these substances a high-throughput immunosorbent solid-phase extraction (HTS-IS-SPE) procedure coupled to ELISA for simultaneous analyses of 2,4,6-TCP immunoreactivity equivalents (2,4,6-TCP-IR equiv) in multiple hydrolyzed urine samples has been developed. Around 100 urine samples can be processed simultaneously with an inter- and intra-assay precision lower than 23% CV and a limit of detection of 0.3 μg L-1.
The analyses by HTS-IS-SPE−ELISA and HTS-IS-SPE−GC/MS of urine samples (N = 117) collected from three different population groups point to a broad exposure of the Catalonian population to organohalogenated substances including the recently emerging organobrominated pollutants. Environment and edible products seem to be the most likely sources of exposure, since excretion of 2,4,6-TCP-IR equiv has been found to be independent from the occupational sector. An excellent correlation was observed between the 2,4,6-TCP-IR equiv determined by HTS-IS-SPE−ELISA and the concentrations measured by HTS-IS-SPE−GC/MS (R2 = 0.912). The results show that immunochemical screening methods, based on the quantification of urinary biomarkers, can be excellent tools for exposure assessment. The HTS-IS-SPE−ELISA presented here has proved to be efficient, precise, accurate, rapid, and specific, which opens up the possibility for a broad variety of applications where routine testing of large number of samples is required.
Descripción9 pages, 5 tables, 3 figures.
Versión del editorhttp://dx.doi.org/10.1021/es0518629
URIhttp://hdl.handle.net/10261/12296
DOI10.1021/es0518629
ISSN0013-936x (Print)
1520-5851(Online)
Aparece en las colecciones: (IQAC) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.