CO breath test by detecting endogenousCOconcentration to determinered blood cell life span. human breathCOThere are three sources:hemedegradation, non-heme metabolic production, and exogenous inhalation . endogenousCOof86%from heme degradation, not produced by heme metabolismCONo more14%. and produceCOof heme85%Again fromred blood cellofHemoglobindegradation,15%From non-erythrocyte heme. Generally about.70%endogenous exhalationCOfrom erythrocyte degradation. Under the premise of excluding exogenous interference, the lungCOThe rate of excretion can be used to calculate the destruction rate of red blood cells, and the time required to calculate the total whole blood volume of hemoglobin is the life expectancy of red blood cells at the moment. The simplified calculation formula is as follows: Red blood cell life(Day)=Hemoglobin concentration (unit:g/L）× 1.38 / expiratory endogenousCOConcentration(ppm) 。

Breathing carbon monoxide (CO1) TesterIt helps to quit smoking. The monitor measures the amount of carbon monoxide in a smoker's breath. For smokers, this is a biochemical method to determine a person's smoking status. For smokers themselves, it is a motivational visual aid to encourage them to quit smoking and evaluate their progress in the process.

CO breath testing can also be used to monitor neonatal hyperbilirubinemia, neonatalhyperbilirubinemiaMonitoring, assessment of high-risk factors, and correct and timely treatment are essential for the prevention of severe hyperbilirubinemia andbilirubin encephalopathyIt is of great significance. The bilirubin level after birth is a dynamic process, determination of exhaled breathCOThe content of can reflect the rate of bilirubin production, so it can be used to predict the possibility of hyperbilirubinemia in children with hemolysis. . For birth.24Hours of neonatal determination in breathCOConcentration, if less2.0ppm, it is judged that there is no bad result.

The human respiratory gas detector uses an electrochemical carbon monoxide sensor, which has the characteristics of high sensitivity, good reliability and fast response speed.

Shenzhen Technology Co., Ltd. to recommend a British Alpahsense research and development of CO-B4 sensor, the following is the main parameters of this sensor:

Range:0-1000ppm

Response time: <30s

Sensitivity:420-650nA/ppm

Resolution:4ppb

Size: φ32.5x16.5

Zero current:30 ~-250 Na