Proton-transfer-reaction mass spectrometry (PTR-MS) has been widely used to study the
emissions, distributions, and chemical evolution of volatile organic compounds (VOCs) in …

This tutorial review is a critical commentary on the combined use of two instrumental
analytical techniques, namely GC-MS and PTR-MS. The first mention of such an analytical …

We evaluate the performance of a new chemical ionization source called Vocus, consisting
of a discharge reagent-ion source and focusing ion–molecule reactor (FIMR) for use in …

Breath analysis research is being successfully pursued using a variety of analytical
methods, prominent amongst which are gas chromatography with mass spectrometry, GC …

With recent advances in ionization sources and instrumentation, ion mobility spectrometers
(IMS) have transformed from a detector for chemical warfare agents and explosives to a …

Chemical ionization mass spectrometry (CIMS) is a powerful tool for on-line characterization
of atmospheric trace species and reveal of new atmospheric oxidation mechanisms. The …

Here we introduce a new prototype of a Proton Transfer Reaction-Time-Of-Flight Mass
Spectrometry (PTR-TOFMS) instrument. In contrast to commercially available PTR-TOFMS …

Photon ionization mass spectrometry (PI-MS) is a widely used technique for the online
detection of trace substances in complex matrices. In this work, a new high-pressure photon …

Volatile organic compound (VOC) emissions and subsequent oxidation contribute to the
formation of secondary pollutants and poor air quality in general. As more VOCs at lower …

Proton transfer reaction mass spectrometry (PTR-MS) has been developed for the direct,
high sensitivity and high time resolution monitoring of volatile organic compounds (VOCs) …