Boost your research with holistic airborne chemicals analysis

Chemicals are fundamental in our daily lives, yet certain compounds pose threats to both human health and environment. To identify these potentially harmful substances among the myriad of compounds that surround us, ultra-sensitive and selective devices are needed.
We provide easy to use end-to-end solutions for air analysis with low detection limits and high selectivity. By partnering with leading universities and research institutes, we support scientific endeavors to expand the frontiers of fundamental science,  address environmental challenges and develop effective environmental policies.

Ultra-sensitive & selective, yet versatile!

The core of our technology lies in the ability to analyze airborne chemical compounds with high sensitivity and selectivity, bypassing traditional chromatographic techniques. We achieve high sensitivity by using chemical ionization at atmospheric pressure and injecting only reagent ions into the sample flow, avoiding the dilution of air samples. Unlike the Proton Transfer Reactor, our method uses soft ionization, where reagent ions form adducts with a sample gas, preventing fragmentation of the target molecules and ensuring high selectivity.
The versatility of our technology is greatly enhanced by the ability to switch between multiple reagent ions and polarities. With all sources switched off, MION2 can detect ambient ions. The switching can be as rapid as one second, enabling seamless analysis of a wide range of compounds without the need to change the setup, therefore, saving time. We call our technology the Multi-scheme chemical ionization inlet or MION2, and it can be easily integrated with OrbitrapTM and TOF-based (Tofwerk/Aerodyne) mass spectrometers.      



End-to-end solutions in airborne chemicals analysis. From sample acquisition to data analysis.
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High performance system for sensitive and selective ionization at atmospheric pressure.
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The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source

The missing mechanism from iodine sources to particle formation is discovered in the CLOUD chamber and confirmed by the field observations

Pesticide residue fast screening using Thermal Desorption MION MS with selective chemical ionization

A new methodology for pesticide screening bypassing sample pretreatment was proposed and tested with bromide, acetonylacetone and water as reagent ions.

Molecular composition and volatility of gaseous organic compounds in a boreal forest

An attempt to compose a full picture of gaseous organic compounds in a boreal forest with a focus on quantifying their molecular composition and volatility.

Measurements of iodine species and sulfuric acid using bromide chemical ionization

During the iodine oxidation experiments in CLOUD chamber, gas-phase iodine species and sulfuric acid were measured using Br-MION-CIMS and FIGAERO-CIMS .


Upcoming conferences

In May and June, you can meet Karsa representatives at the following events.

Welcome Konstantin to the team!

Konstantin Tumashevich joins Karsa's Software and Data team as a signal processing engineer.

Karsa has presented at EGU 2024.

EGU24, the European Geosciences Union General Assembly, was held in Vienna from 14 to 19 April 2024.

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