A continuous discharge at 230 megacycles, produced by a radio-frequency extra-hightension generator, in a sealed-off gas system, has been used in conjunction with a quartz prism spectrophotometer to study binary mixtures of argon and carbon dioxide. The concentrations of mixtures in the range 9 to 90% argon, and 91 to 10% carbon dioxide have been determined with a reproducibility of ± 3.2% absolute, expressed as a standard deviation. Determinations can be carried out in about 1 min, making the technique superior to the usual spectrographic technique. The procedure developed suggests that with improved instrumentation, ensuring constancy of source intensity, and substitution of a continuously flowing gas for the sealedoff system, it might be possible to extend the technique to mixtures of other gases and obtain better reproducibility and accuracy.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call