Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Non-invasive and Time-dependent Blood-sugar Monitoring via Breath-derived CO2 Correlation Using Gas Chromatograph with a Milli-whistle Gas Analyzer
Cheng-Huang LINLuo-Xian WUKuan-Hao CHENHsu-Feng LOKing-Chuen LINToshio KASAIChien-Chung CHENChung-Hung SHIHMaria Carla MANZANOGil Nonato SANTOSEnrique MANZANODerrick Ethelbhert YU
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2020 Volume 36 Issue 6 Pages 739-743


A clear and positive correlation between the CO2 concentration and the blood-sugar level has been observed via a non-invasive and time-dependent monitoring of CO2 concentration from human breath, which is carried out by using a home-made gas chromatography (GC)/milli-whistle compact analyzer. The time-dependent sampling of the CO2 concentration correlated between 5.0 to 5.6% (1% = 104 ppm) in accordance with blood-sugar level variations of 80 to 110 mg/dL. The analytical method results in a rapid, continuous and non-invasive determination of blood-sugar level via measurement of the CO2 concentration exhaled from the lungs.

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© 2020 by The Japan Society for Analytical Chemistry
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