8.1.5 - Development and Validation of a Portable GC-MOS System for High-Sensitivity and Selective Analysis of VOC
- Event
- EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich - Band
- Lectures
- Chapter
- Chemical Sensors
- Author(s)
- O. Brieger, A. Schütze, C. Bur - Saarland University,Saarbrücken (Germany), T. Sauerwald, G. Zeh - Fraunhofer IVV,Freising (Germany)
- Pages
- 252 - 253
- DOI
- 10.5162/eurosensors2026/8.1.5
- ISBN
- 978-3-910600-12-6
- Price
- free
Abstract
This study presents the development, setup, and validation of a miniaturized gas chromatography system using a metal oxide semiconductor gas sensor as detector and a pre-concentrator based on metal-organic frameworks as injector. The system addresses the need for cost-effective, portable solutions for monitoring chemical markers in complex gas phases. It was first validated in the lab showing a good separation of an aldehyde mix, which is used as calibration standard for fat oxidation markers. To evaluate real-world performance, the system was deployed in a quality control lab at a chocolate factory. The device successfully detected hexanal, a critical biomarker used to determine the freshness of nuts. Additionally, initial results indicate the suitability in bio-medical application, too.