Device for rapid transfer of condensable gases into a capillary
作者:
S. Halas,
H. R. Krouse,
期刊:
Review of Scientific Instruments
(AIP Available online 1984)
卷期:
Volume 55,
issue 7
页码: 1160-1161
ISSN:0034-6748
年代: 1984
DOI:10.1063/1.1137911
出版商: AIP
数据来源: AIP
摘要:
An inverted bellows‐sealed vacuum valve was modified by replacing the Teflon pad on its stem by a stainless‐steel dish with a knife‐edge circumference and a capillary attached through its center. A Teflon cup for containing liquid air was threaded on top into the valve outlet. With the dish down, condensable gases could be frozen on a small surface area on the bottom of the cup. By pushing the dish upwards so the knife edge pushed into the Teflon, the gas was quantitatively transferred into the capillary upon warming.
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