Coupling a Particle-Into-Liquid-Sampler (PILS) to Metrohm's 850 Professional IC system enables the quasi-continuous measurements of anions and cations in aerosols with 5-15-minute temporal resolution.
The determination of anions and cations in atmospheric aerosols yields essential information about atmospheric transport and transformation processes.
The filter method only permits determination averages over a 24-hour period or a longer time span.
The results can be compromised by desorption processes and chemical transformations.
Using PILS enables the semi-continuous sampling of aerosols downstream from a denuder system.
After removing interfering gas-phase compounds, the remaining aerosol particles are dissolved to water via a supersaturated steam phase and the subsequent liquid sample is transferred to the ion chromatography (IC) system for analysis.
The key benefit of this method is its high temporal resolution of measurements; changes in the ionic composition of ambient air can be recorded almost immediately, providing a more precise correlation with meteorological and other data.
All Metrohm systems come with a three-year warranty and are fully backed by the company's Applications Laboratory support team.
IC suppressors come with a 10-year warranty.
