Dry ice fog extraction of volatile organic compounds

Yang, Hui-Hsien; Urban, Pawel L.

doi:10.1016/j.chroma.2018.11.052

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…32 Dry ice has been added into solvent to extract volatile organic compounds (VOCs). 33 Bursting bubble ionization was developed to study complex chemistry occurring at the interface between liquid and vapor phases. 34 In addition, when abundant bursting microbubbles have emerged from the sample solution, the extraction and scavenging of surface-active analytes at the bubble surface can also occur.…”

Section: ■ Introductionmentioning

confidence: 99%

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Online Scavenging of Trace Analytes in Complex Matrices for Fast Analysis by Carbon Dioxide Bubbling Extraction Coupled with Gas Chromatography–Mass Spectrometry

Gao

Xia

Qin

et al. 2020

J. Agric. Food Chem.

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Carbon dioxide (CO2) microbubbles can selectively enrich organic solutes from sea spray aerosols. Common bubbling extractions are normally followed by off-line separation/detection through methods such as mass spectrometry, chromatography, and spectroscopy. However, it is necessary to establish extractions with online separation and identification systems to improve efficiency and minimize sample loss. In this study, CO2 is used to form microbubbles in the sample solution, and trace analytes in the solution are transported to the gas phase by bubble bursting. Analytes at the liquid–gas interface are directly released into the trapping device, followed by thermal desorption for gas chromatography–mass spectrometry. For polycyclic aromatic hydrocarbons, the dependence of the extraction efficiency on various parameters has been analyzed. The method reported here provides high efficiency and minimizes the loss of trace volatiles with a better signal strength and signal-to-noise ratio than other gases. These features make the proposed method a rapid method to detect and quantify volatile/semivolatile analytes in complex liquid matrices. In addition to the preconcentration of organics, metal ions, and inorganic anions, a noticeable decrease of metal–organic compounds in the aqueous solution was shown for the first time. We finally propose a simple model of chemical partitioning in CO2 bubbling extraction of liquid samples for guiding online monitoring of trace analytes in real-world samples.

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Section: ■ Introductionmentioning

confidence: 99%

“…Preconcentration of organic solutes in urine was achieved based on the collection of induced bursting bubble aerosols . Dry ice has been added into solvent to extract volatile organic compounds (VOCs) . Bursting bubble ionization was developed to study complex chemistry occurring at the interface between liquid and vapor phases .…”

Section: Introductionmentioning

confidence: 99%

Online Scavenging of Trace Analytes in Complex Matrices for Fast Analysis by Carbon Dioxide Bubbling Extraction Coupled with Gas Chromatography–Mass Spectrometry

Gao

Xia

Qin

et al. 2020

J. Agric. Food Chem.

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Novel sample preparation approaches in gas chromatographic analysis: Promising ideas

Vyviurska

S̆pánik

2019

J of Separation Science

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The development of sample preparation procedures is still a dynamic process despite a number of already proposed techniques. The main challenge in this research field is to fully replace classical procedures like liquid‐liquid extraction and solid‐phase extraction in gas chromatographic analysis. Some progress has been already achieved for the last 20 years when miniaturized techniques were incorporated in ISO standards. The current review is focused on novel approaches in sample treatment that appeared since 2010. It includes research studies describing non‐conventional instrumental design available to inspire future progress in the field. A combination of a few extraction principles and supporting with additional treatment are the main core suggested for improvement of sample preparation efficiency. This requires good compatibility of extraction media, assessment of multiple experimental parameters, and potential automatization possibilities.

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On-line coupling of fizzy extraction with gas chromatography

Yang

Urban

2019

Anal Bioanal Chem

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Dry ice fog extraction of volatile organic compounds

Cited by 6 publications

References 31 publications

Online Scavenging of Trace Analytes in Complex Matrices for Fast Analysis by Carbon Dioxide Bubbling Extraction Coupled with Gas Chromatography–Mass Spectrometry

Online Scavenging of Trace Analytes in Complex Matrices for Fast Analysis by Carbon Dioxide Bubbling Extraction Coupled with Gas Chromatography–Mass Spectrometry

Novel sample preparation approaches in gas chromatographic analysis: Promising ideas

On-line coupling of fizzy extraction with gas chromatography

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