Abstract

A study has been made of the feasibility of using the <i>v</i>₃ band of ¹³CO₂ as a basis for measurement of the extent of isotope enrichment in breath tests. Correlation and least-squares treatments were used. Considering the constraints of a small computer, the correlation approach is the more satisfactory. The results indicate that a method that is based on a single measurement at 170 Torr, with a standard curve for quantitation, will, give results that are adequate, considering the natural variation that occurs. Assuming the use of a beam condenser, the amount of sample required is less than that normally taken for this application.

Application of an isotopically enriched ¹³C¹⁶O₂ laser to an optically pumped far-infrared laser

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Opt. Express 28(8) 10970-10980 (2020)

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