New inverse gas chromatographic methodology for studying mass transfer caused by the evaporation of volatile liquids

Martakidis, Kosmas; Gavril, Dimitrios

doi:10.1080/10739149.2019.1573192

Cited by 11 publications

(2 citation statements)

References 43 publications

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“…The current standard analytical methods for PAHs' detection, including gas chromatography, gas chromatography-mass spectrometry (GC-MS) [7], immunoassay, electrochemical biosensing, and high-performance liquid chromatography (HPLC) [8][9][10][11][12][13] are currently broadly applied. These traditional detection methods have some disadvantages, such as having a time-consuming pretreatment process, and requiring the use of expensive, large-scale experimental instruments, which cannot meet the needs of rapid detection in the field.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Fe3O4@PDA@Au@GO Composite as SERS Substrate and Its Application in the Enrichment and Detection for Phenanthrene

Liu

Cao

et al. 2022

Micromachines

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In this study, highly active Fe3O4@PDA@Au@GO surface-enhanced Raman spectroscopy (SERS) active substrate was synthesized for application in the enrichment and detection of trace polycyclic aromatic hydrocarbons (PAHs) in the environment. The morphology and structure were characterized by transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and UV–visible absorption spectrum (UV–vis spectra). The effect of each component of Fe3O4@PDA@Au@GO nanocomposites on SERS was explored, and it was found that gold nanoparticles (Au NPs) are crucial to enhance the Raman signal based on the electromagnetic enhancement mechanism, and apart from enriching the PAHs through π–π interaction, graphene oxide (GO) also generates strong chemical enhancement of Raman signals, and polydopamine (PDA) can prevent Au from shedding and agglomeration. The existence of Fe3O4 aided the quick separation of substrate from the solutions, which greatly simplified the detection procedure and facilitated the reuse of the substrate. The SERS active substrate was used to detect phenanthrene in aqueous solution with a detection limit of 10−7 g/L (5.6 × 10−10 mol/L), which is much lower than that of ordinary Raman, it is promising for application in the enrichment and detection of trace PAHs.

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Section: Introductionmentioning

confidence: 99%

Preparation of Fe3O4@PDA@Au@GO Composite as SERS Substrate and Its Application in the Enrichment and Detection for Phenanthrene

Liu

Cao

et al. 2022

Micromachines

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“…Reversed-flow inverse gas chromatography (RF-IGC) is ideal to study slow rate processes, not affected by the mobile phase flow rate, − and carry out physicochemical measurements, thus it is also classified as an inverse GC technique. It has been applied, among the others, for the measurement of gaseous diffusion coefficients, − mass-transfer parameters across the gas–liquid interphase, − collision cross-sectional parameters based on diffusivity measurements, as well as in various studies related to gas–solid interactions. − …”

Section: Introductionmentioning

confidence: 99%

Determination of Sulfur Dioxide Diffusion Coefficients in Hydrogen, Helium, and Nitrogen by Reversed-Flow Inverse Gas Chromatography

2022

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Diffusion coefficients of sulfur dioxide in hydrogen, helium, and nitrogen were determined by reversed-flow gas chromatography. Experiments were performed at temperatures ranging from 323.3 to 573.3 K and reduced at 101.3 kPa. The precision of the method is 96.6%, while its accuracy is 95.5%. Comparison with values predicted by Fuller–Schettler–Giddings and Huang equations indicates small deviations: the Chen–Otmer equation is successful only for the SO2–N2 system. The temperature exponents of SO2 diffusion are as follows: 1.77, 1.71, and 1.75 in H2, He, and N2, respectively. Comparisons with available experimental values for the SO2–H2 and SO2–N2 systems showed small average deviations: 5.7 and 1.3%, respectively.

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A molecularly imprinted nanoprobe incorporating Cu2O@Ag nanoparticles with different morphologies for selective SERS based detection of chlorophenols

Wang

et al. 2019

Microchim Acta

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New inverse gas chromatographic methodology for studying mass transfer caused by the evaporation of volatile liquids

Cited by 11 publications

References 43 publications

Preparation of Fe3O4@PDA@Au@GO Composite as SERS Substrate and Its Application in the Enrichment and Detection for Phenanthrene

Preparation of Fe3O4@PDA@Au@GO Composite as SERS Substrate and Its Application in the Enrichment and Detection for Phenanthrene

Determination of Sulfur Dioxide Diffusion Coefficients in Hydrogen, Helium, and Nitrogen by Reversed-Flow Inverse Gas Chromatography

A molecularly imprinted nanoprobe incorporating Cu2O@Ag nanoparticles with different morphologies for selective SERS based detection of chlorophenols

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