The requirements are shown for the microporous structure of a carbon adsorbent for the selective adsorption of acetone vapors, which is proposed as a gas marker for diabetes. It was shown that the most promising are adsorbents with a pore width of 0.8-1.2 nm. An adsorption quartz-crystal sensor for 150 ppm of acetone vapors was produced from AR-1 activated carbon. The sensor can serve as the instrumental basis for noninvasive identification of diabetes mellitus. At a recording time of 3 min, the minimum sensor sensitivity threshold in the operating range of acetone vapor with 0-20 ppm in exhaled air is 0.19 ppm.
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