Measurement of aerosol sulfuric acid 1. Experimental setup, characterization, 
and calibration of a novel mass spectrometric system

Curtius, J.; Arnold, F.

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Measurement of aerosol sulfuric acid 1. Experimental setup, characterization, and calibration of a novel mass spectrometric system

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Curtius, J.
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Arnold, F.
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Curtius, J., & Arnold, F. (2001). Measurement of aerosol sulfuric acid 1. Experimental setup, characterization, and calibration of a novel mass spectrometric system. Journal of Geophysical Research-Atmospheres, 106(D23), 31965-31974.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-8528-F

Zusammenfassung

An instrument for the direct in situ measurement of aerosol sulfuric acid in the atmosphere has been developed, characterized and calibrated. The instrument termed Volatile Aerosol Component Analyzer (VACA) utilizes chemical ionization mass spectrometry technique for the detection of sulfuric acid. Prior to the mass spectrometric identification the sample flow is heated, and sulfuric acid is evaporated from the aerosol. The VACA system is characterized as a function of temperature, residence time in the flow reactor, aerosol size, and chemical composition. A unit consisting of an aerosol generator, a differential mobility analyzer, a hygrometer, and a condensation nuclei counter is used to calibrate the VACA instrument.