2023
DOI: 10.21883/os.2023.01.54548.3776-22
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Применение Метода Абсорбционной Диодной Лазерной Спектроскопии Для Измерения Содержания -=sup=-13-=/Sup=-С И -=sup=-12-=/Sup=-С В Выдыхаемом Воздухе

Abstract: The paper reports on experimental studies of the absorption of 13C16O2 in a mixture with 12C16O2 in exhaled air by laser absorption spectroscopy using a diode laser tunable in the frequency range 4860-4880 cm-1. The results of the studies showed that the minimum detectable concentration of 13C16O2 is at a level of less than 20 ppm, and this approach is promising for measuring the content of 13C16O2 in exhaled air for non-invasive online diagnosis of oncological diseases of the gastrointestinal tract at early s… Show more

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