Vol. 20, issue 10, article # 14

Ankilov A.N., Kozlov A.S., Malyshkin S.B. The generator of vapors of PreAerosol compounds. Application to calibration and as a thermal-condensation source of aerosol. // Atmospheric and oceanic optics. 2007. V. 20. No. 10. P. 847-849.
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Abstract:

A new, simple and fast method for calibration of water-absorbing method for measuring mass concentration of PreAerosol Compounds (PreAC) in atmospheric air is developed. The method is realized in a generator of a given concentration of low-volatile vapors of a wide class of substances. The principle of generation is based on insertion of a known amount of the substance saturated vapor into the studied airflow. As is shown by means of the generator, the uncertainty of the vapor content measured by the water-absorbing method is less than 10% in the mass concentrations range from 10 up to 3000 ng/m3. Applicability of the generator as a thermal-condensation source of aerosol nanoparticles is shown.

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