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Semi-continuous Determination of Anions, Cations, and Heavy Metals in Aerosols using PILS-IC-VA

Metrohm AG
19 May 2013

This poster presents an approach that couples a Particle-Into-Liquid-Sampler (PILS) to a dual-channel ion chromatograph (IC) for measurement of aerosol anions and cations and a voltammetric measuring stand (VA) to determine the heavy metals. It is shown that the PILS-IC-VA is an invaluable contribution for investigating the composition, transport, and evolution of atmospheric aerosols and is highly suited for long-term unattended field use in remote regions.

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797 VA Computrace

Metrohm AG

The versatile instrument for voltammetry 797 VA Computrace is a modern voltammetric work station connected to the PC via a USB port. The complementary PC software controls the determination, records and evaluates the measured data. Thanks to the sophisticated program design the operation is unbeatably simple. All the methods that are described in the Metrohm Application Bulletins and Metrohm Application Notes are already preinstalled. The integrated new designed potentiostat with galvanostat guarantees highest precision with reduced noise. The well-proven Multi Mode Electrode (MME) as well as rotating disk electrodes (RDE) from different materials are available as working electrodes, of course. The most important applications Stripping Voltammetry: Voltammetric trace analysis of metal ions and other substances CVS: Cyclic Voltammetric Stripping for the determination or additives in plating solutions Exploratory: The Metrohm concept for teaching in electrochemistry

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Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.VoltammetryVoltammetry is a sensitive analytical technique for elemental detection. In a voltammeter the current is measured in the system whilst the voltage is varied. Usually 3 metal electrodes are required including the reference, auxiliary and working electrodes. In polarography, a subclass of voltammetry, the working electrode used is a dropping mercury electrode (DME). The 2 main types of voltammetry are cyclic and linear sweep voltammetry.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Heavy MetalsPILS-ICAerosol Analysis

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Semi-continuous Determination of Anions, Cations, and Heavy Metals in Aerosols using PILS-IC-VA