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Title:
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Development of an automated method for on-line aerosol analyses in the large simulation chambers at FZ-Jülich based on the ECN steam jet aerosol collection method
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Author(s):
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Published by:
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Publication date:
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ECN
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1-11-1999
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ECN report number:
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Document type:
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ECN-C--99-089
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ECN publication
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Number of pages:
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Full text:
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14
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Download PDF
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Abstract:
In 1998 and 1999 both ECN, Netherlands, and FZ-Juelich, Germany, wereinvolved in the European study called HECONOS. During this study ECN
equipment was successfully used to measure the chemical composition of
aerosols in the simulation chamber at FZ-Juelich. For future studies and
projects, FZ-Juelich felt a necessity to own and run such equipment
themselves. This resulted in a commission for the ECN Environmental Analysis
and Technology department to make a study of developing such equipment for
use at the simulation chambers at FZ-Juelich. The study was divided into four
parts: (1) Adaptation of the ECN Steam Jet Aerosol Collector for large
simulation chambers; (2) Conception and investigation of a time-integrating
transfer method to instruments for chemical analysis of the aerosol (ion
chromatography, HPLC); (3) Development of an automated control strategy for
on-line sampling and analysis of aerosols; and (4) Feasibility study on a
small model scale. The method to be developed should have a detection limit
of 0.5 mug/m3 Nitrate or Nitrite aerosol in the presence of 3000 mug/m3
Sulphate aerosol using an air sample flow rate of 20 I/min., at 15 minutes
time resolution. The results of the study are presented in this report. lt is
concluded that it is possible to build a system suitable for aerosol
measurements at Juelich. The necessary parts and software were further
developed and tested and an outline of the system is produced. 2 refs.
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