High frequency air monitoring by selected ion flow tube-mass spectrometry (SIFT-MS): influence of the matrix for simultaneous analysis of VOC, CO2, ozone and water

•    Air quality monitoring is an important challenge due to health, economic and societal issues

•    Innovative analytical method with negative and positive SIFT-MS instrument

•    Understanding of ion-molecule reactions including the air permanent components

•    Simultaneous and high frequency monitoring of VOC, CO2, O3, O2 and water

Abstract

Selected Ion Flow Tube–Mass Spectrometry (SIFT-MS) with both positive (H₃O⁺, O₂^●+ and NO⁺) and negative precursor ions (O^●−, OH⁻, O₂^●−, NO₂⁻ and NO₃⁻) was successfully used for the

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simultaneous monitoring at the ppbV level of VOC together with high CO₂, water or ozone concentration in complex matrixes.

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