Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains
- Autores
- Alfarhani, Bassam; Al-Tameemi, Maha; Goicoechea, Hector Casimiro; Barbosa, Fernando Jr.; Campiglia, Andres D.
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The ultimate goal of the present study is to develop screening methodology for the urine analysis of metabolites of polycyclic aromatic hydrocarbons. The investigated approach is based on surface matrix fluorescence spectroscopy, where octadecyl silica membranes serve the dual purpose of metabolite extraction and solid substrate for fluorescence measurements. One of the main challenges faced by this approach is the interference of concomitants in the sample matrix. The present study focuses on three metabolites with strong spectral and lifetime overlapping, namely benzo[a]pyrene-trans-9,10-dihydrodiol, benzo[a]pyrene-r-7,t-8,c-9-tetrahydrotriol and benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol. As an attempt to improve spectral and lifetime resolution, time-resolved excitation emission matrices are recorded at 77 K with the aid of a cryogenic fiber optic probe and laser-based instrumentation. In comparison to conventional spectrofluorimeters, the use of laser-based instrumentation improves the limits of detection by approximately two-orders of magnitude. The fiber optic probe facilitates the collection of time-resolved excitation emission matrices for the detection of the three metabolites at the pg mL− 1 concentration level. Their accurate determination in urine samples of unknwon composition is only possible with the aid of unfolded-partial least squares/residual tri-linearization. This algorithm demonstrated to be well-equipped to handle strong overlapping in both the spectral and time domains.
Fil: Alfarhani, Bassam. University of Florida; Estados Unidos
Fil: Al-Tameemi, Maha. University of Florida; Estados Unidos
Fil: Goicoechea, Hector Casimiro. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Barbosa, Fernando Jr.. University of Florida; Estados Unidos. Universidade de Sao Paulo; Brasil
Fil: Campiglia, Andres D.. University of Florida; Estados Unidos - Materia
-
Solid-phase extraction
Time-resolved excitation emission matrices
Urine analysis
UPLS/RTL
PAH metabolites - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/89158
Ver los metadatos del registro completo
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Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domainsAlfarhani, BassamAl-Tameemi, MahaGoicoechea, Hector CasimiroBarbosa, Fernando Jr.Campiglia, Andres D.Solid-phase extractionTime-resolved excitation emission matricesUrine analysisUPLS/RTLPAH metaboliteshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The ultimate goal of the present study is to develop screening methodology for the urine analysis of metabolites of polycyclic aromatic hydrocarbons. The investigated approach is based on surface matrix fluorescence spectroscopy, where octadecyl silica membranes serve the dual purpose of metabolite extraction and solid substrate for fluorescence measurements. One of the main challenges faced by this approach is the interference of concomitants in the sample matrix. The present study focuses on three metabolites with strong spectral and lifetime overlapping, namely benzo[a]pyrene-trans-9,10-dihydrodiol, benzo[a]pyrene-r-7,t-8,c-9-tetrahydrotriol and benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol. As an attempt to improve spectral and lifetime resolution, time-resolved excitation emission matrices are recorded at 77 K with the aid of a cryogenic fiber optic probe and laser-based instrumentation. In comparison to conventional spectrofluorimeters, the use of laser-based instrumentation improves the limits of detection by approximately two-orders of magnitude. The fiber optic probe facilitates the collection of time-resolved excitation emission matrices for the detection of the three metabolites at the pg mL− 1 concentration level. Their accurate determination in urine samples of unknwon composition is only possible with the aid of unfolded-partial least squares/residual tri-linearization. This algorithm demonstrated to be well-equipped to handle strong overlapping in both the spectral and time domains.Fil: Alfarhani, Bassam. University of Florida; Estados UnidosFil: Al-Tameemi, Maha. University of Florida; Estados UnidosFil: Goicoechea, Hector Casimiro. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Barbosa, Fernando Jr.. University of Florida; Estados Unidos. Universidade de Sao Paulo; BrasilFil: Campiglia, Andres D.. University of Florida; Estados UnidosElsevier Science2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/89158Alfarhani, Bassam; Al-Tameemi, Maha; Goicoechea, Hector Casimiro; Barbosa, Fernando Jr.; Campiglia, Andres D.; Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains; Elsevier Science; Microchemical Journal; 137; 3-2018; 51-610026-265XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0026265X17305507info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2017.09.022info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:35:43Zoai:ri.conicet.gov.ar:11336/89158instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:35:43.903CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
title |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
spellingShingle |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains Alfarhani, Bassam Solid-phase extraction Time-resolved excitation emission matrices Urine analysis UPLS/RTL PAH metabolites |
title_short |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
title_full |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
title_fullStr |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
title_full_unstemmed |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
title_sort |
Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains |
dc.creator.none.fl_str_mv |
Alfarhani, Bassam Al-Tameemi, Maha Goicoechea, Hector Casimiro Barbosa, Fernando Jr. Campiglia, Andres D. |
author |
Alfarhani, Bassam |
author_facet |
Alfarhani, Bassam Al-Tameemi, Maha Goicoechea, Hector Casimiro Barbosa, Fernando Jr. Campiglia, Andres D. |
author_role |
author |
author2 |
Al-Tameemi, Maha Goicoechea, Hector Casimiro Barbosa, Fernando Jr. Campiglia, Andres D. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Solid-phase extraction Time-resolved excitation emission matrices Urine analysis UPLS/RTL PAH metabolites |
topic |
Solid-phase extraction Time-resolved excitation emission matrices Urine analysis UPLS/RTL PAH metabolites |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The ultimate goal of the present study is to develop screening methodology for the urine analysis of metabolites of polycyclic aromatic hydrocarbons. The investigated approach is based on surface matrix fluorescence spectroscopy, where octadecyl silica membranes serve the dual purpose of metabolite extraction and solid substrate for fluorescence measurements. One of the main challenges faced by this approach is the interference of concomitants in the sample matrix. The present study focuses on three metabolites with strong spectral and lifetime overlapping, namely benzo[a]pyrene-trans-9,10-dihydrodiol, benzo[a]pyrene-r-7,t-8,c-9-tetrahydrotriol and benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol. As an attempt to improve spectral and lifetime resolution, time-resolved excitation emission matrices are recorded at 77 K with the aid of a cryogenic fiber optic probe and laser-based instrumentation. In comparison to conventional spectrofluorimeters, the use of laser-based instrumentation improves the limits of detection by approximately two-orders of magnitude. The fiber optic probe facilitates the collection of time-resolved excitation emission matrices for the detection of the three metabolites at the pg mL− 1 concentration level. Their accurate determination in urine samples of unknwon composition is only possible with the aid of unfolded-partial least squares/residual tri-linearization. This algorithm demonstrated to be well-equipped to handle strong overlapping in both the spectral and time domains. Fil: Alfarhani, Bassam. University of Florida; Estados Unidos Fil: Al-Tameemi, Maha. University of Florida; Estados Unidos Fil: Goicoechea, Hector Casimiro. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Barbosa, Fernando Jr.. University of Florida; Estados Unidos. Universidade de Sao Paulo; Brasil Fil: Campiglia, Andres D.. University of Florida; Estados Unidos |
description |
The ultimate goal of the present study is to develop screening methodology for the urine analysis of metabolites of polycyclic aromatic hydrocarbons. The investigated approach is based on surface matrix fluorescence spectroscopy, where octadecyl silica membranes serve the dual purpose of metabolite extraction and solid substrate for fluorescence measurements. One of the main challenges faced by this approach is the interference of concomitants in the sample matrix. The present study focuses on three metabolites with strong spectral and lifetime overlapping, namely benzo[a]pyrene-trans-9,10-dihydrodiol, benzo[a]pyrene-r-7,t-8,c-9-tetrahydrotriol and benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol. As an attempt to improve spectral and lifetime resolution, time-resolved excitation emission matrices are recorded at 77 K with the aid of a cryogenic fiber optic probe and laser-based instrumentation. In comparison to conventional spectrofluorimeters, the use of laser-based instrumentation improves the limits of detection by approximately two-orders of magnitude. The fiber optic probe facilitates the collection of time-resolved excitation emission matrices for the detection of the three metabolites at the pg mL− 1 concentration level. Their accurate determination in urine samples of unknwon composition is only possible with the aid of unfolded-partial least squares/residual tri-linearization. This algorithm demonstrated to be well-equipped to handle strong overlapping in both the spectral and time domains. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/89158 Alfarhani, Bassam; Al-Tameemi, Maha; Goicoechea, Hector Casimiro; Barbosa, Fernando Jr.; Campiglia, Andres D.; Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains; Elsevier Science; Microchemical Journal; 137; 3-2018; 51-61 0026-265X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/89158 |
identifier_str_mv |
Alfarhani, Bassam; Al-Tameemi, Maha; Goicoechea, Hector Casimiro; Barbosa, Fernando Jr.; Campiglia, Andres D.; Direct analysis of benzo[a]pyrene metabolites with strong overlapping in both the spectral and lifetime domains; Elsevier Science; Microchemical Journal; 137; 3-2018; 51-61 0026-265X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0026265X17305507 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2017.09.022 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614376510717952 |
score |
13.070432 |