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Updated: Jun 16, 2026
Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
Published on: March 9, 2018
Analysis of 2-propanol in exhaled breath using in situ enrichment and cataluminescence detection
1Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, 710049 Xi'an, People's Republic of China.
Abstract:
We report a simple gaseous sensor for the sensitive detection of trace 2-propanol in exhaled breath using in situ enrichment and cataluminescence detection method on the surface of nanomaterials. The influences of heating voltage and absorption time on the CTL intensity were discussed, respectively. In the selected conditions, the linear range of 2-propanol concentration is 60-600 ppbv and the detection of limit is 11 ppbv. Moreover, the lifetime and selectivity of the sensor were also investigated. It has the potential to diagnostic volatile organic compounds in human breath.
