Non-invasive, real-time and dynamic monitoring of CO2 and O2 simultaneously using modulated potential pulse-amperometry/coulometry

Zhong Bai Zhou, Wen Jun Liu, Chung Chiun Liu

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


A modulated potential pulse-amperometry/coulometry (MPPA/MPPC) method which combines computer-controlled fast modulated potential technique with microelectrode is established for the rapid, simultaneous determination of CO2 and O2 in gas mixtures. Experimental results show that this novel approach can be applied to non-invasive, real-time and dynamic monitoring of respiratory gases CO2 and O2 simultaneously with satisfactory accuracy, response time, detection range and long term stability.

Original languageEnglish
Pages (from-to)219-225
Number of pages7
JournalSensors and Actuators, B: Chemical
Issue number3
StatePublished - 1998


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