Application Note: Rapid, Ultra sensitive Detection of Atmospheric Organonitrates
Organonitrates play a pivotal role in atmospheric chemistry: they regulate the NOₓ budget, drive secondary organic aerosol formation, and act as reservoirs for long-range nitrogen transport. Measuring these compounds at ultra-trace levels in humid, chemically complex air remains a significant analytical challenge.
Analytical Chemistry: Uronium Enables Sustainable Ultrasensitive Detection of Amines and Semivolatiles
Karsa researchers, together with partners in Helsinki and Tampere, have published in Analytical Chemistry a new method for sustainable, ultrasensitive detection of amines and semivolatiles. Using X-ray desorbed solid urea, the team achieved attomole-level sensitivity with stable operation across humidity conditions with all solid-state reagents.
White paper: The Next Decade of Atmospheric Science Will Be Driven by High-er Resolution
This white paper explains how insufficient resolution leads to ambiguity—and how new high-resolution mass spectrometry is essential for identifying what truly matters in air chemistry.
Mobile Orbitrap Mass Spectrometry: Stability and Performance in Motion
Historically, Orbitrap mass spectrometers have been considered large, power-intensive, and lab-bound instruments -- but times have changed!
Nature: Study of new particle formation from isoprene using MION
A December 2024 Nature study reveals how isoprene emissions drive new particle formation in the upper troposphere. A MION2-CIMS provided key measurements, detecting species critical to nucleation and growth under extreme conditions.
Analytical Chemistry: Introducing Multi-Pressure Chemical Ionization Mass Spectrometry
MPCIMS enables simultaneous detection of Volatile Organic Compounds and their oxidized reaction products within a single gas stream.
Analytical Chemistry: Fast Polarity Switching of Chemical Ionization Orbitrap MS
The polarity switching MION-Orbitrap system is shown to be a versatile and powerful technique for the online analysis of a wide range of reactive trace species.
AMT: Multiphysical description of chemical ionisation in MION2
A detailed comparison of two atmospheric pressure interface CIMS inlets: the MION2 inlet and the Eisele type inlet.
