Development of a stir bar sorptive extraction and thermal desorption–gas chromatography–mass spectrometry method for the simultaneous determination of several persistent organic pollutants in water samples

Prieto, Ailette; Zuloaga, Olatz; Usobiaga, Aresatz; Etxebarria, Néstor; Fernández, Laura García

doi:10.1016/j.chroma.2007.07.054

Cited by 134 publications

(41 citation statements)

References 33 publications

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“…Indoxacarb, Cyprodinitril and Tebuconazol (with logP03.7-4.65) were extracted significantly more efficiently from pure wine, probably supported by the higher ethanol content. It is known that in stir bar sorptive extraction and MASE applications, the addition of methanol to aqueous samples can enhance the extraction of more lipophilic analytes, as reported previously for the determination of alkylphenols, PCBs and UV filters [33][34][35].…”

Section: Influence Of the Ph Value On The Extraction Efficiencymentioning

confidence: 73%

Determination of pesticide residues in wine by membrane-assisted solvent extraction and high-performance liquid chromatography–tandem mass spectrometry

et al. 2012

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The determination of pesticides in food products is an essential issue to guarantee food safety and minimise health risks of consumers. A protocol based on membrane-assisted solvent extraction and liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) that allows the determination of 18 pesticides in red wine at minimum labour effort for sample preparation was developed and validated. Ten millilitres of wine were extracted using 100 μL of toluene filled in a non-porous polyethylene membrane bag which is immersed in the wine sample. After 150 min extraction under stirring, an aliquot of the extraction solution is analysed using HPLC-MS/MS. The limits of quantification ranged from 3 ng/L for Pirimicarb to 1.33 μg/L for Imidacloprid. Quantification by matrix-matched calibration provided relative standard deviations ≤16 % for most of the target pesticides. The linearity of calibration was given over three to four orders of magnitude, which enables the reliable measurement of a broad range of pesticide concentrations, and for each target pesticide, the sensitivity of the protocol meets the maximum residue levels set by legislations at least for wine grapes. Good agreement of results was found when the new method was compared with a standard liquid-liquid extraction protocol. In five wine samples analysed, Carbendazim and Metalaxyl were determined at micrograms per litre concentrations, even in some of the organic wines. Tebuconazol and Cyprodinitril were determined at lower abundance and concentration, followed by Spiroxamin and Diuron.

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Section: Influence Of the Ph Value On The Extraction Efficiencymentioning

confidence: 73%

Determination of pesticide residues in wine by membrane-assisted solvent extraction and high-performance liquid chromatography–tandem mass spectrometry

et al. 2012

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“…They are very economical as for instance up to 11 two-level factors can be estimated in a 12-run design. An example can be found in [72].…”

Section: Fixed Design Methodsmentioning

confidence: 99%

Designing biomedical proteomics experiments: state-of-the-art and future perspectives

Maes

Kelchtermans

Bittremieux

et al. 2016

Expert Review of Proteomics

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With the current expanded technical capabilities to perform mass spectrometry-based biomedical proteomics experiments, an improved focus on the design of experiments is crucial. As it is clear that ignoring the importance of a good design leads to an unprecedented rate of false discoveries which would poison our results, more and more tools are developed to help researchers designing proteomic experiments. In this review, we apply statistical thinking to go through the entire proteomics workflow for biomarker discovery and validation and relate the considerations that should be made at the level of hypothesis building, technology selection, experimental design and the optimization of the experimental parameters.

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“…Several other developments using SBSE to analyze conventional environmental pollutants like pesticides [31,34,46], phenols [32,33,42], PAHs [41,45] [5] but new phases are important to enhance the extraction process, as shown by Huang et al [32] that developed a new phase (poly(vinylpyridine-ethylene dimethacrylate)) to extract polar phenols, concluding that this phase can also be applied to analyze other groups of polar analytes.…”

Section: Recent Applications Of Sbse For Environmental Analysismentioning

confidence: 99%

Recent developments and applications of stir bar sorptive extraction

Lanças¹,

Queiroz

Grossi

et al. 2009

J of Separation Science

129

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The theoretical aspects of stir bar sorptive extraction (SBSE), as well as the recent applications of this technique in pharmaceutical, biomedical, environmental, and food analysis, and recently developed new coating procedures are reviewed. A general overview of the important factors to be evaluated in the optimization of extraction efficiency such as extraction time, matrix pH, ionic strength, effect of organic additives, temperature, agitation, pre-extraction derivatization reactions, influence of proteins, and desorption conditions are discussed. An impressive number of applications using SBSE have been published in different areas including biological, environmental, and food, showing the advantages of this technique over the classical extraction techniques (liquid-liquid extraction (LLE), Soxhlet). Although the different SBSE applications use PDMS phase as sorbent, developments of new phases are necessary for specific applications. In this review, recent SBSE developments are shown with a focus on the development of new instrumental approaches and sorbent phases.

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Development of a stir bar sorptive extraction and thermal desorption–gas chromatography–mass spectrometry method for the simultaneous determination of several persistent organic pollutants in water samples

Cited by 134 publications

References 33 publications

Determination of pesticide residues in wine by membrane-assisted solvent extraction and high-performance liquid chromatography–tandem mass spectrometry

Determination of pesticide residues in wine by membrane-assisted solvent extraction and high-performance liquid chromatography–tandem mass spectrometry

Designing biomedical proteomics experiments: state-of-the-art and future perspectives

Recent developments and applications of stir bar sorptive extraction

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