Comparison of second-order multivariate methods for screening and determination of PAHs by total fluorescence spectroscopy

Elcoroaristizabal, Saioa; Juan, Anna de; García, José María González; Durana, Nieves; Alonso, Lucio

doi:10.1016/j.chemolab.2014.01.005

Cited by 38 publications

(16 citation statements)

References 30 publications

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“…This is consistent with their properties. This is consistent with their properties as LMW PAHs have higher water solubility and vapor pressure than HMW PAHs [45].…”

Section: Short Long-standing Contactsupporting

confidence: 83%

Future Trends for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons in Water Sources: The Role of Immunosensing Techniques

2019

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Polycyclic aromatic hydrocarbons (PAHs) are hazardous environmental pollutants found in water, soil, and air. Exposure to this family of chemicals presents a danger to human health, and as a result, it is imperative to design methods that are able to detect PAHs in the environment, thus improving the quality of drinking water and agricultural soils. This review presents emerging immunoassay techniques used for in situ detection of PAH in water samples and how they compare to common-place techniques. It will discuss their advantages and disadvantages and why it is required to find new solutions to analyze water samples. These techniques are effective in reducing detection times and complexity of measurements. Immunoassay methods presented here are able to provide in situ analysis of PAH concentrations in a water sample, which can be a great complement to existing laboratory techniques due to their real-time screening and portability for immunoassay techniques. The discussion shows in detail the most relevant state-of-the-art surface functionalization techniques used in the field of immunosensors, with the aim to improve PAH detection capabilities. Specifically, three surface functionalization techniques are key approaches to improve the detection of PAHs, namely, substrate surface reaction, layer-by-layer technique, and redox-active probes. These techniques have shown promising improvements in the detection of PAHs in water samples, since they show a wider linear range and high level of sensitivity compared to traditional PAH detection techniques. This review explores the various methods used in the detection of PAH in water environments. It provides extra knowledge to scientists on the possible solutions that can be used to save time and resources. The combination of the solutions presented here shows great promise in the development of portable solutions that will be able to analyze a sample in a matter of minutes on the field.

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“…This is consistent with their properties. This is consistent with their properties as LMW PAHs have higher water solubility and vapor pressure than HMW PAHs [45].…”

Section: Short Long-standing Contactsupporting

confidence: 83%

Future Trends for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons in Water Sources: The Role of Immunosensing Techniques

2019

View full text Add to dashboard Cite

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“…Known as a sensitive, rapid and nondestructive method, fluorescence detection technique has been strongly recommended to identify and quantify PAHs [6][7][8], although it has dependence on environmental factors, such as temperature, ionic strength and pH value [9]. The key step to recognize individual PAH by fluorescence detection technique is accurately extracting spectra of analytes from the acquired three dimensional fluorescence spectra of PAHs mixture.…”

Section: Introductionmentioning

confidence: 99%

Determination of polycyclic aromatic hydrocarbons by four-way parallel factor analysis in presence of humic acid

Yang

Zhao

Xue

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…First of all, a summary of the main conclusions of the use of the three second‐order algorithms PARAFAC, MCR‐ALS, and U‐PLS/RBL on the set of synthetic validation samples with and without interferences is presented to point out differences among these second‐order methods when applied to the analytes studied (Section 4.1). More detail and quantitative parameters are found in the previous study related to these data sets . These findings are useful to understand the strategies of analysis and the new results presented in Section 4.2, devoted to the optimization of the extraction protocol for aerosol samples and the testing of the standard addition method for quantitative analysis, and Section 4.3, dedicated to the analysis of ambient air aerosol samples and the comparison with GC‐MS results.…”

Section: Resultsmentioning

confidence: 96%

Chemometric determination of PAHs in aerosol samples by fluorescence spectroscopy and second‐order data analysis algorithms

Elcoroaristizabal

Juan

García

et al. 2014

Journal of Chemometrics

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The development of a method based on the combination of excitation–emission fluorescence matrices (EEMs) and second‐order algorithms is proposed to identify and quantify 10 polycyclic aromatic hydrocarbons (PAHs) in extracts of aerosol samples, a particularly complex sample matrix because of the low amount of PAHs and the numerous fluorescent interferences. Parallel factor analysis, unfolded partial least squares coupled to residual bilinearization (RBL) and multivariate curve resolution – alternating least squares offered satisfactory results for their identification and quantification and were also helpful for the optimization of the extraction procedure for these substances by means of analysis of a standard reference material. Multivariate curve resolution – alternating least squares and parallel factor analysis combined with EEM proved to be fast and cheap analysis methods that are able to do semiquantitative monitoring of PAHs patterns in the inhalable and respirable fractions of atmospheric aerosols, important features for routine environmental monitoring. Accurate quantifications could also be achieved when the strategy of standard addition method was used. Unfolded partial least squares/RBL achieved slightly better quantitative results when sample matrices were moderately complex; in aerosol sample analysis, the selection of number of RBL contributions turned particularly difficult—because of the lack of information on the sample composition—and the time‐consuming application of the method did not suggest its use for routine environmental monitoring. Finally, results of EEM with second‐order methods in agreement with gas chromatography‐mass spectrometry analysis of ambient air samples proved the suitability of the methodology proposed because of the sensitivity of fluorescence measurements and the lower analytical cost and fast computation time compared with standard analytical procedures. Copyright © 2014 John Wiley & Sons, Ltd.

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Comparison of second-order multivariate methods for screening and determination of PAHs by total fluorescence spectroscopy

Cited by 38 publications

References 30 publications

Future Trends for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons in Water Sources: The Role of Immunosensing Techniques

Future Trends for In Situ Monitoring of Polycyclic Aromatic Hydrocarbons in Water Sources: The Role of Immunosensing Techniques

Determination of polycyclic aromatic hydrocarbons by four-way parallel factor analysis in presence of humic acid

Chemometric determination of PAHs in aerosol samples by fluorescence spectroscopy and second‐order data analysis algorithms

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