Polydimethylsiloxane/MIL-100(Fe) coated stir bar sorptive extraction-high performance liquid chromatography for the determination of triazines in environmental water samples

Lei, Yun; Chen, Beibei; You, Linna; He, Man; Hu, Bin

doi:10.1016/j.talanta.2017.05.040

Cited by 41 publications

(19 citation statements)

References 48 publications

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“…This MOF sorbent can trap molecules with molecular size of ~4 Å by generating π – π interactions. Since the molecular size of BTEXs is in the range 2–4 Å, the MOF sorbent can easily trap them by hydrogen bonding and π – π interactions between the BTEX aromatic rings and MIL‐100 (Fe) (El Osta et al, ; Hu et al, ; Lei, Chen, You, He, & Hu, ). In the present study, to achieve higher extraction efficiency, the MIL‐100(Fe) was modified by silica, hydroxyl and carboxyl functional groups (MIL‐100(Fe)@Fe 3 O 4 @SiO 2 ), and then the modified MIL‐100(Fe) was used for the extraction of BTEXs in the urine samples.…”

Section: Resultsmentioning

confidence: 99%

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

Saedi

Bahrami

Mohraz

et al. 2020

Biomedical Chromatography

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The aim of this study was to develop a new method for the determination of benzene, toluene, ethylbenzene and xylene isomers (BTEXs) in urine samples. In this method, MIL‐100(Fe)@Fe3O4@SiO2 metal–organic framework was synthesized, characterized and packed inside a needle trap device (NTD) as a sorbent for headspace extraction of unmetabolized BTEXs from urine samples followed by gas chromatography (GC) analysis. The GC device was equipped with a flame ionization detector (FID). The results showed that the optimal extraction time, extraction temperature and salt content were 60 min, 30°C and 5%, respectively. Also, the optimal desorption time and temperature were determined to be 1 min and 250°C, respectively. The limits of detection and quantification of the analytes of interest were in the ranges 0.0001–0.0005 and 0.0003–0.0014 μg ml−1, respectively. The intra‐ and inter‐day repeatability were <7.6%. The accuracy of the measurements in urine samples was in the range 7.1–11.4%. The results also demonstrated that the proposed NTD offered various advantages such as having high sensitivity and being inexpensive, reusable, user friendly, environmentally friendly and compatible for use with the GC device. Therefore, it can be efficiently used as a MIL–NTD for the extraction and analysis of unmetabolized BTEXs from urine samples.

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Section: Resultsmentioning

confidence: 99%

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

Saedi

Bahrami

Mohraz

et al. 2020

Biomedical Chromatography

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“…As the solubility of SAs varies with solvent, it is necessary to explore the influence of eluent after MSPE . The extraction of SAs by the Fe 3 O 4 /rGO‐CNTs originated π‐π stacking and hydrophobic interactions.…”

Section: Resultsmentioning

confidence: 99%

Fe₃O₄/reduced graphene oxide-carbon nanotubes composite for the magnetic solid-phase extraction and HPLC determination of sulfonamides in milk

Feng

Zhao

et al. 2019

J. Sep. Sci.

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A novel magnetic adsorbent Fe3O4/reduced graphene oxide‐carbon nanotubes, was prepared by one‐pot solvothermal synthesis method. It was characterized by scanning electron microscopy, X‐ray powder diffraction and vibrating sample magnetometry. The diameter of Fe3O4 microparticles was about 350 nm, which were covered by carbon nanotubes and reduced graphene oxide sheets, while carbon nanotubes inserted between the reduced graphene oxide sheets effectively prevented their aggregation. The composite had large surface area and good magnetic property, suiting for magnetic solid‐phase extraction and the determination of sulfonamides, by coupling with high‐performance liquid chromatography. Under the optimized conditions (including extraction time, amount of adsorbent, solution pH, ionic strength and desorption conditions), a good linear was achieved in the concentration range of 5–500 μg/L and the low limits of detection and low limits of quantification were 0.35–1.32 and 1.16–4.40 μg/L, respectively. The enrichment factors were estimated to be 24.72 to 30.15 fold. The proposed method was applied for the detection of sulfonamides in milk sample and the recoveries were 88.4–105.9%, with relative standard deviations of 0.74–5.38%.

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“…On the other hand, the use of this sorbent phase limits the application of SBSE, mainly for the non-polar analytes [4,6,7], although polar phases as ethylene glycol modified silicone and polymetacrylate are commercialized by Gerstel nowadays [8]. Nevertheless, a lot of recent works have been carried out in order to evaluate different approaches or materials to be used as sorbent phases [7][8][9][10][11][12][13], besides the publication of some specific reviews concerning SBSE [1,4,6,14].…”

Section: Introductionmentioning

confidence: 99%

Potentiality of Epoxy-Montmorillonite Composite for Stir-Bar Sorptive Extraction for Determination of Atrazine

Bohone

Weber

Silva

et al. 2020

Braz. arch. biol. technol.

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Polydimethylsiloxane/MIL-100(Fe) coated stir bar sorptive extraction-high performance liquid chromatography for the determination of triazines in environmental water samples

Cited by 41 publications

References 48 publications

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

Fe₃O₄/reduced graphene oxide-carbon nanotubes composite for the magnetic solid-phase extraction and HPLC determination of sulfonamides in milk

Potentiality of Epoxy-Montmorillonite Composite for Stir-Bar Sorptive Extraction for Determination of Atrazine

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Polydimethylsiloxane/MIL-100(Fe) coated stir bar sorptive extraction-high performance liquid chromatography for the determination of triazines in environmental water samples

Cited by 41 publications

References 48 publications

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

A needle trap device packed with MIL‐100(Fe) metal organic frameworks for efficient headspace sampling and analysis of urinary BTEXs

Fe3O4/reduced graphene oxide-carbon nanotubes composite for the magnetic solid-phase extraction and HPLC determination of sulfonamides in milk

Potentiality of Epoxy-Montmorillonite Composite for Stir-Bar Sorptive Extraction for Determination of Atrazine

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Fe₃O₄/reduced graphene oxide-carbon nanotubes composite for the magnetic solid-phase extraction and HPLC determination of sulfonamides in milk