P2.9.19 Handheld Sensor Array for Detection of Trace Gases
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
- P2.9 Technology and Application
- J. Frank, H. Fischer, G. Matz - Hamburg University of Technology, Institute of Measurement Technology (Germany)
- 1753 - 1756
Chemical incidents can occur in many situations - for example during transport of toxic industrial chemicals. In case of a spontaneous release of chemical agents it is important to identify and to quantify the exposed gas. The developed handheld device DACHS provides a quick on-site analysis of chemical hazardous substances. The system combines different sensor technologies to an array to cover a large number of toxic industrial substances. The most sensitive detector is an ion mobility spectrometer that detects positive and negative ion species simultaneously. Chemical compounds can be separated by a short chromatographic multi capillary. The injection to the integrated gas chromatograph is done by desorption from an enrichment unit.