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Huang K, Wu HL, Wang T, Dong MY, Yan XQ, Yu RQ. Chemometrics-assisted excitation-emission matrix fluorescence spectroscopy for real-time migration monitoring of multiple polycyclic aromatic hydrocarbons from plastic products to food simulants. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123360. [PMID: 37717485 DOI: 10.1016/j.saa.2023.123360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/19/2023] [Accepted: 09/04/2023] [Indexed: 09/19/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), as a class of organic pollutants that have attracted much attention, are likely to be formed with the production and processing of plastic products, and they may migrate from contaminated plastic products to food, causing the risk of poisoning or cancer. In this study, migration tests were carried out on disposable plastic products for food contact, and a novel strategy that combines excitation-emission matrix (EEM) fluorescence spectroscopy with the advanced second-order calibration method based on the three-direction resection alternating trilinear decomposition (TDR-ATLD) algorithm was used to monitor the migration of three PAHs anthracene (ANT), pyrene (PYR), and phenanthrene (PHE) from the plastic products to food simulants in real-time. With the "second-order advantage", even if the fluorescence spectra of the target analytes overlapped seriously, and other unknown substances migrated from the plastic products to food simulants, accurate qualitative and quantitative results were still obtained by the proposed method. In the static system, the coefficient of determination (R2) of the three PAHs within the calibration range were all greater than 0.99, and the average spiked recoveries were 99.5-107.1%, with the standard deviation lower than 8.9%. The figures of merit (FOMs) and intra- or inter-day precision also showed good feasibility and reliability of the method. In the simulation study of the migration kinetic process, three PAHs can be quantified in real-time in complex matrix, then the related migration equations were established. The results indicate that the proposed method can be used for real-time migration quantitative monitoring of PAHs, providing a potential and available method for the study of the migration kinetics of hazardous substances from food contact materials to food or food simulants.
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Affiliation(s)
- Kun Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Hai-Long Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
| | - Tong Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
| | - Ming-Yue Dong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Xiao-Qin Yan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
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Wu HL, Wang T, Yu RQ. Recent advances in chemical multi-way calibration with second-order or higher-order advantages: Multilinear models, algorithms, related issues and applications. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115954] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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3
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Arif S, Al-Tameemi M, Wilson WB, Wise SA, Barbosa F, Campiglia AD. Low-temperature time-resolved phosphorescence excitation emission matrices for the analysis of phenanthro-thiophenes in chromatographic fractions of complex environmental extracts. Talanta 2020; 212:120805. [PMID: 32113567 DOI: 10.1016/j.talanta.2020.120805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/23/2020] [Accepted: 02/02/2020] [Indexed: 10/25/2022]
Abstract
The present study investigates the analytical potential of low-temperature photoluminescence spectroscopy for the analysis of seven phenanthrothiophenes with molecular mass 234 g mol-1. The studied PASHs include Phenanthro [1,2-b]thiophene, Phenanthro [2,1-b]thiophene, Phenanthro [2,3-b]thiophene, Phenanthro [3,2-b]thiophene, Phenanthro [3,4-b]thiophene, Phenanthro [4,3-b]thiophene and Phenanthro [9,10-b]thiophene. Excitation and emission spectra recorded from n-alkane solutions at room temperature, 77 K and 4.2 K show phosphorescence emission from all the studied isomers at cryogenic temperatures. The analytical figures of merit obtained under steady state (fluorescence) and time-resolved (phosphorescence) conditions provide limits of detection at the parts-per-billion (ng mL-1) concentration levels. Processing 77 K and 4.2 K phosphorescence data with parallel factor analysis showed to be a robust approach to the determination of phenanthro-thiophenes in complex fluorophore mixtures.
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Affiliation(s)
- Sadia Arif
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA
| | - Maha Al-Tameemi
- Department of Chemistry, College of Sciences for Women, University of Baghdad, Iraq
| | - Walter B Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stp 8390, Gaithersburg, MD, USA
| | - Stephen A Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stp 8390, Gaithersburg, MD, USA
| | - Fernando Barbosa
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA.
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Hayes HV, Wilson WB, Santana AM, Campiglia AD, Sander LC, Wise SA. Determination of molecular mass 302 polycyclic aromatic hydrocarbons in Standard Reference Material 1597a by reversed-phase liquid chromatography and constant energy synchronous fluorescence spectroscopy. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Johnson M, Fadhel A, Trieu K, Daniel J, Beazley M, Campiglia AD. Detection of inorganic phosphor in environmental water samples using a lanthanide and nanoparticle chemosensor based on Fӧrster resonance energy transfer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:375-383. [PMID: 30721853 DOI: 10.1016/j.saa.2019.01.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
A novel chemosensor is presented for the detection of inorganic phosphate (Pi) in environmental water samples. The sensing solution is comprised of terbium (Tb3+) chelated to ethylenediaminetetraacetic acid (EDTA) acid and cetyltrimethylammonium bromide (CTAB)-capped gold nanoparticles (Au NPs). Upon mixing, Tb-EDTA and Au NPs undergo Fӧrster resonance energy transfer (FRET) in which the luminescence from the lanthanide ion is quenched. Upon the addition of Pi, Au NPs aggregate and precipitate out of solution. The aggregation of Au NPs results in the restoration of the Tb-EDTA luminescence signal, which correlates linearly to the Pi concentration in the matrix of analysis. The limit of detection (LOD) of the luminescence sensor (83 ng·mL-1) is within the range of LODs previously reported for on-site monitoring of Pi. Quantitative analysis carried out via the multiple standard additions method provides accurate determination of Pi concentrations in heavily contaminated environmental waters.
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Affiliation(s)
- Madeleine Johnson
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA
| | - Alaa Fadhel
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA
| | - Khang Trieu
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA
| | - Jonathan Daniel
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA
| | - Melanie Beazley
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, P.O. Box 25000, Orlando, FL 32816-2366, USA.
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Wilson WB, Hayes HV, Campiglia AD, Wise SA. Qualitative characterization of three combustion-related standard reference materials for polycyclic aromatic sulfur heterocycles and their alkyl-substituted derivatives via normal-phase liquid chromatography and gas chromatography/mass spectrometry. Anal Bioanal Chem 2018; 410:4177-4188. [PMID: 29732496 PMCID: PMC6193260 DOI: 10.1007/s00216-018-1065-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/23/2018] [Accepted: 04/05/2018] [Indexed: 10/17/2022]
Abstract
The research described here provides the most comprehensive qualitative characterization of three combustion-related standard reference materials (SRMs) for polycyclic aromatic sulfur heterocycles (PASHs) and some alkyl-substituted (alkyl-) derivatives to date: SRM 1597a (coal tar), SRM 1991 (coal tar/petroleum extract), and SRM 1975 (diesel particulate extract). An analytical approach based on gas chromatography/mass spectrometry (GC/MS) is presented for the determination of three-, four-, and five-ring PASH isomers and three- and four-ring alkyl-PASHs in the three SRM samples. The benefit of using a normal-phase liquid chromatography (NPLC) fractionation procedure prior to GC/MS analysis was demonstrated for multiple isomeric PASH groups. Using a semi-preparative aminopropyl (NH2) LC column, the three combustion-related samples were fractionated based on the number of aromatic carbon atoms. The NPLC-GC/MS method presented here allowed for the following identification breakdown: SRM 1597a - 35 PASHs and 59 alkyl-PASHs; SRM 1991-31 PASHs and 58 alkyl-PASHs; and SRM 1975-13 PASHs and 25 alkyl-PASHs. These identifications were based on NPLC retention data, the GC retention times of reference standards, and the predominant molecular ion peak in the mass spectrum. Prior to this study, only 11, 1, and 0 PASHs/alkyl-PASHs had been identified in SRM 1597a, SRM 1991, and SRM 1975, respectively. Graphical abstract NPLC-GC/MS analysis for the three- and four-ring parent PASH isomers in SRM 1597a.
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Affiliation(s)
- Walter B Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.
| | - Hugh V Hayes
- Department of Chemistry, University of Central Florida, Orlando, Florida, 32816, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, Orlando, Florida, 32816, USA
| | - Stephen A Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
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Direct analysis of benzo[ a ]pyrene metabolites with strong overlapping in both the spectral and lifetime domains. Microchem J 2018. [DOI: 10.1016/j.microc.2017.09.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hayes HV, Wilson WB, Sander LC, Wise SA, Campiglia AD. Determination of polycyclic aromatic hydrocarbons with molecular mass 302 in Standard Reference Material 1597a by reversed-phase liquid chromatography and stop-flow fluorescence detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2018; 10:10.1039/C8AY00760H. [PMID: 31093300 PMCID: PMC6512832 DOI: 10.1039/c8ay00760h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The identification of isomeric polycyclic aromatic hydrocarbons (PAHs) in complex samples via reversed-phase liquid chromatography (RPLC) with fluorescence detection (FL) is normally based on matching the chromatographic retention times of suspected peaks of interest with reference standards. Since no spectral information is obtained during the chromatographic run, the accurate identification of co-eluting PAHs with similar chromatographic behaviors requires confirmation with additional chromatographic methods. This is particularly true for the analysis of PAH isomers with the relative molecular mass (MM, g/mol) 302. The work presented here explores the information content of room-temperature fluorescence spectra for the analysis of PAHs with MM 302 in the Standard Reference Material (SRM) 1597a. Fluorescence spectra were recorded under stop-flow conditions with the aid of a commercial HPLC system. Of the 21 MM 302 PAHs known to be present in the SRM 1597a, 20 were tentatively identified based on retention times and the presence of 18 was confirmed based on excitation and emission spectral profiles.
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Affiliation(s)
- Hugh V. Hayes
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816
| | - Walter B. Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Lane C. Sander
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Stephen A. Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Andres D. Campiglia
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816
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Wilson WB, Hayes HV, Sander LC, Campiglia AD, Wise SA. Qualitative characterization of SRM 1597a coal tar for polycyclic aromatic hydrocarbons and methyl-substituted derivatives via normal-phase liquid chromatography and gas chromatography/mass spectrometry. Anal Bioanal Chem 2017; 409:5171-5183. [PMID: 28664340 DOI: 10.1007/s00216-017-0464-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/31/2017] [Accepted: 06/09/2017] [Indexed: 11/29/2022]
Abstract
A normal-phase liquid chromatography (NPLC) fractionation procedure was developed for the characterization of a complex mixture of polycyclic aromatic hydrocarbons (PAHs) from a coal tar sample (Standard Reference Material (SRM) 1597a). Using a semi-preparative aminopropyl (NH2) LC column, the coal tar sample was separated using NPLC based on the number of aromatic carbons; a total of 14 NPLC fractions were collected. SRM 1597a was analyzed before and after NPLC fractionation by using gas chromatography/mass spectrometry (GC/MS) with a 50% phenyl stationary phase. The NPLC-GC/MS method presented in this study allowed for the identification of 72 PAHs and 56 MePAHs. These identifications were based on the NPLC retention times for authentic reference standards, GC retention times for authentic reference standards, and the predominant molecular ion peak in the mass spectrum. Most noteworthy was the determination of dibenzo[a,l]pyrene, which could not be measured directly by GC/MS because of low concentration and co-elution with dibenzo[j,l]fluoranthene. The NPLC-GC/MS procedure also allowed for the tentative identification of 74 PAHs and 117 MePAHs based on the molecular ion peak only. This study represents the most comprehensive qualitative characterization of SRM 1597a to date. Graphical abstract NPLC-GC/MS analysis for the six-ring MM 302 Da PAH isomers in SRM 1597a.
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Affiliation(s)
- Walter B Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 8390, Gaithersburg, MD, 20899, USA.
| | - Hugh V Hayes
- Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Lane C Sander
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 8390, Gaithersburg, MD, 20899, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Stephen A Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 8390, Gaithersburg, MD, 20899, USA
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Richardson SJ, Blakey I, Thurecht KJ, Irvine DJ, Whittaker AK. Spectral normalisation by error minimisation for prediction of conversion in solvent-free catalytic chain transfer polymerisations. RSC Adv 2016. [DOI: 10.1039/c6ra06462k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
This work provides a robust method to determine spectral normalization points in reactions with no known constant responses.
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Affiliation(s)
- Samuel J. Richardson
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- St Lucia
- Australia
| | - Idriss Blakey
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- St Lucia
- Australia
- Centre for Advanced Imaging
| | - Kristofer J. Thurecht
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- St Lucia
- Australia
- Centre for Advanced Imaging
| | - Derek J. Irvine
- National Centre for Industrial Microwave Processing
- Department of Chemical and Environmental Engineering
- University of Nottingham
- Nottingham
- UK
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- St Lucia
- Australia
- Centre for Advanced Imaging
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Hu J, Zhuang Q, Wang Y, Ni Y. Label-free fluorescent catalytic biosensor for highly sensitive and selective detection of the ferrous ion in water samples using a layered molybdenum disulfide nanozyme coupled with an advanced chemometric model. Analyst 2016; 141:1822-9. [DOI: 10.1039/c5an02457a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The synergistically enhanced catalytic effect of a Fe2+/molybdenum disulfide (MoS2) nanosheet was exploited to construct a nanozyme biosensor for Fe2+.
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Affiliation(s)
- Jie Hu
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | | | - Yong Wang
- College of Chemistry
- Nanchang University
- Nanchang
- China
| | - Yongnian Ni
- College of Chemistry
- Nanchang University
- Nanchang
- China
- State Key Laboratory of Food Science and Technology
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