Determination of heavy polycyclic aromatic hydrocarbons of concern in edible oils via excitation-emission fluorescence spectroscopy on nylon membranes coupled to unfolded partial least-squares/residual bilinearization

Valeria Vasquez, María E. Báez, Manuel Bravo, Edwar Fuentes

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Seven heavy polycyclic aromatic hydrocarbons (PAHs) of concern on the US Environmental Protection Agency priority pollutant list (benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenz[a,h] anthracene, benzo[g,h,i]perylene, and indeno[1,2,3-c,d]-pyrene) were simultaneously analyzed in extra virgin olive oil. The analysis is based on the measurement of excitation-emission matrices on nylon membrane and processing of data using unfolded partial least-squares regression with residual bilinearization (U-PLS/RBL). The conditions needed to retain the PAHs present in the oil matrix on the nylon membrane were evaluated. The limit of detection for the proposed method ranged from 0.29 to 1.0 μg kg -1 , with recoveries between 64 and 78 %. The predicted U-PLS/RBL concentrations compared favorably with those measured using high-performance liquid chromatography with fluorescence detection. The proposed method was applied to ten samples of edible oil, two of which presented PAHs ranging from 0.35 to 0.63 μg kg -1 . The principal advantages of the proposed analytical method are that it provides a significant reduction in time and solvent consumption with a similar limit of detection as compared with chromatography. [Figure not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)7497-7507
Number of pages11
JournalAnalytical and Bioanalytical Chemistry
Volume405
Issue number23
DOIs
StatePublished - Sep 1 2013

Fingerprint

Polycyclic Aromatic Hydrocarbons
Fluorescence Spectrometry
Nylons
Fluorescence spectroscopy
Emission spectroscopy
Oils and fats
Least-Squares Analysis
Oils
Membranes
Limit of Detection
Perylene
United States Environmental Protection Agency
Benzo(a)pyrene
Environmental Protection Agency
High performance liquid chromatography
Chromatography
Fluorescence
High Pressure Liquid Chromatography
Recovery
Processing

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry

Cite this

@article{abb573ceb0c14833b2d3a8dc3b2110a5,
title = "Determination of heavy polycyclic aromatic hydrocarbons of concern in edible oils via excitation-emission fluorescence spectroscopy on nylon membranes coupled to unfolded partial least-squares/residual bilinearization",
abstract = "Seven heavy polycyclic aromatic hydrocarbons (PAHs) of concern on the US Environmental Protection Agency priority pollutant list (benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenz[a,h] anthracene, benzo[g,h,i]perylene, and indeno[1,2,3-c,d]-pyrene) were simultaneously analyzed in extra virgin olive oil. The analysis is based on the measurement of excitation-emission matrices on nylon membrane and processing of data using unfolded partial least-squares regression with residual bilinearization (U-PLS/RBL). The conditions needed to retain the PAHs present in the oil matrix on the nylon membrane were evaluated. The limit of detection for the proposed method ranged from 0.29 to 1.0 μg kg -1 , with recoveries between 64 and 78 {\%}. The predicted U-PLS/RBL concentrations compared favorably with those measured using high-performance liquid chromatography with fluorescence detection. The proposed method was applied to ten samples of edible oil, two of which presented PAHs ranging from 0.35 to 0.63 μg kg -1 . The principal advantages of the proposed analytical method are that it provides a significant reduction in time and solvent consumption with a similar limit of detection as compared with chromatography. [Figure not available: see fulltext.]",
author = "Valeria Vasquez and B{\'a}ez, {Mar{\'i}a E.} and Manuel Bravo and Edwar Fuentes",
year = "2013",
month = "9",
day = "1",
doi = "10.1007/s00216-013-7201-x",
language = "English (US)",
volume = "405",
pages = "7497--7507",
journal = "Fresenius Zeitschrift fur Analytische Chemie",
issn = "0016-1152",
publisher = "Springer Verlag",
number = "23",

}

TY - JOUR

T1 - Determination of heavy polycyclic aromatic hydrocarbons of concern in edible oils via excitation-emission fluorescence spectroscopy on nylon membranes coupled to unfolded partial least-squares/residual bilinearization

AU - Vasquez, Valeria

AU - Báez, María E.

AU - Bravo, Manuel

AU - Fuentes, Edwar

PY - 2013/9/1

Y1 - 2013/9/1

N2 - Seven heavy polycyclic aromatic hydrocarbons (PAHs) of concern on the US Environmental Protection Agency priority pollutant list (benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenz[a,h] anthracene, benzo[g,h,i]perylene, and indeno[1,2,3-c,d]-pyrene) were simultaneously analyzed in extra virgin olive oil. The analysis is based on the measurement of excitation-emission matrices on nylon membrane and processing of data using unfolded partial least-squares regression with residual bilinearization (U-PLS/RBL). The conditions needed to retain the PAHs present in the oil matrix on the nylon membrane were evaluated. The limit of detection for the proposed method ranged from 0.29 to 1.0 μg kg -1 , with recoveries between 64 and 78 %. The predicted U-PLS/RBL concentrations compared favorably with those measured using high-performance liquid chromatography with fluorescence detection. The proposed method was applied to ten samples of edible oil, two of which presented PAHs ranging from 0.35 to 0.63 μg kg -1 . The principal advantages of the proposed analytical method are that it provides a significant reduction in time and solvent consumption with a similar limit of detection as compared with chromatography. [Figure not available: see fulltext.]

AB - Seven heavy polycyclic aromatic hydrocarbons (PAHs) of concern on the US Environmental Protection Agency priority pollutant list (benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenz[a,h] anthracene, benzo[g,h,i]perylene, and indeno[1,2,3-c,d]-pyrene) were simultaneously analyzed in extra virgin olive oil. The analysis is based on the measurement of excitation-emission matrices on nylon membrane and processing of data using unfolded partial least-squares regression with residual bilinearization (U-PLS/RBL). The conditions needed to retain the PAHs present in the oil matrix on the nylon membrane were evaluated. The limit of detection for the proposed method ranged from 0.29 to 1.0 μg kg -1 , with recoveries between 64 and 78 %. The predicted U-PLS/RBL concentrations compared favorably with those measured using high-performance liquid chromatography with fluorescence detection. The proposed method was applied to ten samples of edible oil, two of which presented PAHs ranging from 0.35 to 0.63 μg kg -1 . The principal advantages of the proposed analytical method are that it provides a significant reduction in time and solvent consumption with a similar limit of detection as compared with chromatography. [Figure not available: see fulltext.]

UR - http://www.scopus.com/inward/record.url?scp=84883561338&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84883561338&partnerID=8YFLogxK

U2 - 10.1007/s00216-013-7201-x

DO - 10.1007/s00216-013-7201-x

M3 - Article

VL - 405

SP - 7497

EP - 7507

JO - Fresenius Zeitschrift fur Analytische Chemie

JF - Fresenius Zeitschrift fur Analytische Chemie

SN - 0016-1152

IS - 23

ER -