Lubna M. Ahmad,Zachary B. Smith,Salman A. Ahmad,Brent C. Satterfield,Rhett L. Martineau
申请号:
US16423958
公开号:
US20190350495A1
申请日:
2019.05.28
申请国别(地区):
US
年份:
2019
代理人:
摘要:
Various systems and devices are disclosed for measuring an analyte, such as acetone, in a breath sample of a human subject. In some embodiments, a system is provided that includes a displosable cartridge having a reaction chamber containing an interactant, such as interactant particles. The interactant reacts with an analyte in a breath sample that is passed along a flow path through the reaction chamber. An optical subsystem measures a color change resulting from a reaction in the reaction chamber; this color change is indicative of a concentration of the analyte in the breath sample. In some embodiments, the optical subsystem illuminates the cartridge using multiple LEDs of different colors or wavelengths.