Fast MS Example Data for Medical Applications - Medical / Health Care

Using a “Fast Orifice Inlet” and a 2m PTFE sample line the following data was collected. The sample line was held close to the subject’s Nose and a series of breathing patterns were acuired. The MS was firstly calibrated in room air for N2, O2, CO2 and Ar. The MS was set to collect data at an analysis dwell/measurement speed of 2ms / gas. Looking at the data below and concentrating on the CO2 and O2 signals. The first block of peaks were at measured at approximately 1 sec/breath for 10 breaths The second block were 20 breaths at approximately 0.7 sec/breaths The Third block was considerably faster and led to hyperventilation after 20 breaths. Finally a single exhaled breath was recorded.