Schnellanalyse bei Chemieunfaellen und Braenden mit mobilem GC-MS-System. Entwicklung und Erprobung von Standardverfahren in der Praxis Abschlussbericht

A new mobile GC/MS system (Bruker Model EM640) has been developed to analyze hazardous organic compound emissions. The aim of this project has been to design a semi-automatic GC/MS ststem and procedures that make it possible to perform sampling and analysis in less than 10 min. The instrumentation has to be suitable for installation in a container or a helicopter. Properly trained fire fighters, instead of analytical chemists, should be able to operate the system. A comprehensive kit for analytical field work has been developed. In a German nationwide research project based on the use of mobile GC/MS, standard operating procedures for the analysis of organic substances in air, water, soil and contaminated surfaces have been established. The focus is on simple sample treatment and fast compound enrichment techniques. A graphical user interface (GUI) has been designed especially for operation by skilled firefighters. This GUI is an easy-to-use data system with fixed analytical methods (sample description, parameters of GC and MS, identification and assessment). Further developments have been focussed on simple calibration procedures for air sampling and an on-line probe for on-line measurements and enrichment unit for programmed GC-cycles. Optimized data bases are used that contain mass spectra, retention indexes and response factors for identification and automatic semi-quantitative evaluation. A wireless data transfer system has been set up using the digital communication standard GSM. Files containing GC-MS data have been transferred to experts off-site for risk assessment. (orig.)Available from TIB Hannover: F98B1894+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman