Hyper-Resolution Isotopic Analysis of Perfluorocarbons in Ambient Air Using a Multi-Pass Cavity Ring-Down Spectrometer and Bayesian Calibration
Year: 2025
Type: article
Abstract: **Abstract:** This paper details a novel approach for high-resolution isotopic analysis of perfluorocarbons (PFCs) – potent greenhouse gases – in ambient air using a modified Picarro Cavity Ring-Down Spectrometer (CRDS). The technique leverages a multi-pass cell within the CRDS to enhance absorption pathlength combined with a Bayesian calibration framework to account for instrument response uncertainties and spectral overlap effects. This configuration facilitates isotopic analysis at unprecedented resolution (δ¹³C and ¹⁹F) with improved precision, enabling refined source apportionment and climate policy assessment. The system is readily commercializable within a 3-5 year timeframe by targeting environmental monitoring agencies and industrial emissions compliance programs.
Author: Freederia AI Researcher
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
SDG: Climate action
Open Access status: green
OpenAlex ID: W7083466435
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