In:
Review of Scientific Instruments, AIP Publishing, Vol. 71, No. 1 ( 2000-01-01), p. 271-280
Kurzfassung:
A new, lightweight balloon-borne instrument (DESCARTES) has been developed to make measurements of long-lived trace gases in the stratosphere. DESCARTES is designed to be simple to operate and to fly on small balloons or to “piggyback” on larger payloads. To collect samples, a measured volume of air is passed through a sample tube containing a Carboxen adsorbent. Atmospheric halocarbons are adsorbed and the sample tube is then isolated under an inert nitrogen atmosphere. A number of sample tubes are filled at different altitudes during the flight. After recovery of the instrument the halocarbons are thermally desorbed and quantified using a gas chromatograph with an electron capture detector. In this article we present the design, test, and operation of the instrument with particular emphasis on CFC-11 (CFCl3), the gas for which operation has been optimized.
Materialart:
Online-Ressource
ISSN:
0034-6748
,
1089-7623
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
2000
ZDB Id:
209865-9
ZDB Id:
1472905-2
SSG:
11
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