Gotas suspensas: uma proposta para amostragem e análise de gases traços da atmosfera
Título alternativoLiquid droplet: a proposal for sampling and analysis of trace gas in the atmosphere
Data de publicação1998-04-01
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In the present paper, we report on the analytical use of a dynamic droplet based gas collection and an analysis system. A droplet formed at the tip of a tube represents a sampling approach that provides an indefinitely renewable surface and uses very little reagent. Sample gas flows past the droplet at a low flow rate. After the gas was sampled , the analysis can be carried out by different methodologies. The feasibility of the sensor is demonstrated by continuos determination of gaseous as: NO2, Cl2 and SO2.