ArticleRapid communications in mass spectrometry : RCM2026
A New Approach to the Analysis of Dissolved Gases Using Passive Samplers, With Portable Mass Spectrometry and Gas Chromatography Techniques.
Article in Rapid communications in mass spectrometry : RCM, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
rationalePortable mass spectrometry systems such as miniRUEDI enable rapid and low-cost field analysis of dissolved gases with high temporal resolution. However, they remain poorly suited for discrete small-volume water samples. This study presents an approach based on passive sampling for groundwater and surface waters dissolved gases and gas tracer analyses.
methodsPassive samplers (≈25 mL) were deployed in near-air-saturated water for several days to equilibrate with dissolved gases. After retrieval and locking, gas samples were analysed in the laboratory using the miniRUEDI portable mass spectrometry combined with gas chromatography-electron capture detection (GC-ECD).
resultsThe combined miniRUEDI and GC-ECD approach enabled reliable and simultaneous measurements of major gases (N
conclusionsThis method extends portable mass spectrometry to discrete low-volume water samples and facilitates the use of transient anthropogenic gas tracers for determining young groundwater ages (< 70 years). Its simplicity, low cost and multi-gas capability also make it promising for tracer plume mapping and environmental monitoring applications.
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