07/31/2009 • Analytics • Laboratory appliances

Determination of Anions and Cations in Aerosols

Research on air pollution requires rapid and accurate measurements of inorganic species. Coupling a Particle-Into-Liquid-Sampler (PILS) to Metrohms 850 Professional IC allows measurements with a temporal resolution of 5 to 15 min. Until now determinations of anions and cations in atmospheric aerosol have been carried out using filters, which allow only determining averages over a time span of 24 hours or more. In contrast to sampling devices relying on filters, using a PILS allows semi-continuous sampling of aerosols downstream from a denuder system.

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