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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 1
BKCSDE 15(1)
January 20, 1994

Title	A Direct Detection of CO2 in Sealed-off CO2 Discharge Tube by Optoacoustic Effect
Author	Sung-Ho Kim*, Joong-Gill Choi, Ung-In Cho*
Keywords
Abstract	A simple analytical method that allows direct monitoring of small amount of CO2 in a CO2 discharge tube which utilizes the optoacoustic detection technique is described. The dependence of the optoacoustic signal on the mole fraction of CO2 was shown that the system responded linearly to the amount of CO2 present in the miniature discharge cavity equipped with Cu electrodes. It was also found that fraction of dissociated CO2 varied from 14 to 37% of the initial concentration which depended on the current and the pressure in the tube. This simple and easy detection method has proven to possess the practical advantages over the conventional systems for the study of CO2 laser electrodes.
Page	23 - 25
Full Text	PDF

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