Development of a Portable Gas Chromatograph Linear Ion Trap Mass Spectrometer with Dual-Stage Cryogenic Preconcentration for On-Site Analysis of Atmospheric CFC-11, CFC-12, HCFC-22, and HCFC-141b

Xiaolan Deng; Bowen Wang; Ni Zhang; Yulin Chen; Shuo Zhang; Xinxin Lu; XiaoXu Li

doi:10.1039/d5an00727e

January 1, 2025The Analyst

Development of a Portable Gas Chromatograph Linear Ion Trap Mass Spectrometer with Dual-Stage Cryogenic Preconcentration for On-Site Analysis of Atmospheric CFC-11, CFC-12, HCFC-22, and HCFC-141b

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Key Points

The device enables on-site detection, revealing continued emissions of ozone-depleting substances despite regulations.
Measurements indicate unexpected emissions of CFC-11 and CFC-12, suggesting legacy banks or unreported production sources.
This portable gas chromatograph utilizes cryogenic preconcentration for effective analysis in the field.
Findings call for improved monitoring of ozone-depleting substances to safeguard environmental regulation efforts.

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Implication

This device analyzes atmospheric CFC-11, CFC-12, HCFC-22, and HCFC-141b emissions, highlighting ongoing environmental concerns.

Abstract

Despite regulatory bans on ozone-depleting substances (ODS) such as CFC-11 and CFC-12, recent atmospheric measurements have revealed unexpected emissions, potentially originating from legacy banks or unreported production. Conventional ODS monitoring...

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Deng et al. (2025) studied this question.

synapsesocial.com/papers/68bb4dfb6d6d5674bcd025d3 https://doi.org/10.1039/d5an00727e

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Development of a Portable Gas Chromatograph Linear Ion Trap Mass Spectrometer with Dual-Stage Cryogenic Preconcentration for On-Site Analysis of Atmospheric CFC-11, CFC-12, HCFC-22, and HCFC-141b

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Abstract

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Cite This Study

Development of a Portable Gas Chromatograph Linear Ion Trap Mass Spectrometer with Dual-Stage Cryogenic Preconcentration for On-Site Analysis of Atmospheric CFC-11, CFC-12, HCFC-22, and HCFC-141b

Key Points

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Abstract

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