Non-invasive and time-dependent blood-sugar monitoring via breath-derived CO2 correlation using gas chromatograph with a milli-whistle gas analyzer

• Main Authors: Lin, Cheng Huang, Wu, Luo Xian, Chen, Kuan Hao, Lo, Hsu Feng, Lin, King Chuen, Kasai, Toshio, Chen, Chien Chung, Shih, Chung Hung, Manzano, Maria Carla, Santos, Gil Nonato, Manzano, Enrique M., Yu, Derrick Ethelbhert
• Format: text
• Published: Animo Repository 2020
• Subjects: Carbon dioxide; Carbon dioxide—Physiological transport; Blood sugar; Gas chromatography; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/2757
• Institution: De La Salle University

A clear and positive correlation between the CO2 concentration and the blood-sugar level has been observed via a noninvasive and time-dependent monitoring of CO2 concentration from human breath, which is carried out by using a homemade 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. © 2020, Japan Society for Analytical Chemistry.