The quadrupole mass spectrometer, originally developed as a mass filter in the 1950s, has since evolved into an adaptable tool across research and industry. Its unique ability to monitor gaseous compounds over an exceptionally wide concentration range—from ppb to percent levels (to 100%)—sets it apart from gas-specific sensors, enabling comprehensive, real-time analysis of complex gas mixtures. Modern quadrupoles offer improved response times and detection limits, making in-situ measurements feasible even in dynamic experimental environments.
In this session, we invite contributions that highlight the expanding applications of quadrupole mass spectrometry. Specifically, in the areas of:
• Stable isotope analysis,
• Real-time monitoring of analytes,
• Respiration analysis with bio reactors, or
• Innovative uses of the technology for analyzing both gaseous and aqueous components

The research presented should underscore the ongoing evolution of quadrupole mass spectrometry as a key analytical technique, opening new avenues for research and industrial applications.