公开(公告)号：EP2986970A1

公开(公告)日：2016-02-24

申请号：EP14718398.2

申请日：2014-04-16

申请人： Laser-Laboratorium Göttingen E.V. ,  AIRSENSE Analytics GmbH

发明人： WACKERBARTH, Hainer ,  GUNDRUM, Lars ,  UNGETHÜM, Bert ,  MÜNCHMEYER, Wolf ,  WALTE, Andreas

IPC分类号： G01N21/35 ,  G01N21/65 ,  G01N21/17

CPC分类号： G01N21/658 ,  G01N21/3504 ,  G01N33/227 ,  G01N2021/1734 ,  G01N2021/258 ,  G01N2201/024 ,  G01N2201/06113

摘要： The invention relates to the identifying of not easily volatilized substances, in particular hazardous materials, in a gas phase. A measurement cell (2) and a gas supply device (14) connected to the measurement cell (2) are heated and a plasmonic surface (1) arranged in the measurement cell (2) is temperature-controlled such that the plasmonic surface (1) has a lower temperature than the measurement cell (2) and the gas supply device (14). The gas phase is guided through the gas supply device (14) into the measurement cell (2) in such a manner that the gas phase reaches the temperature-controlled plasmonic surface (1). Substances adsorbed from the gas phase on the plasmonic surface (1) are analyzed by an optical process. Surface-enhanced Raman spectroscopy or surface-enhanced infrared spectroscopy can be used as the optical process. Selectivity can be increased by combining both methods. Selectivity can be additionally increased by using a gas detector, preferably an ion-mobility spectrometer, along with one or both optical processes, and thus the false alarm rate reduced without loss of time.

公开(公告)号：EP3610245A1

公开(公告)日：2020-02-19

申请号：EP18721675.9

申请日：2018-04-12

申请人： Laser-Laboratorium Göttingen E.V.

发明人： GUNDRUM, Lars ,  BORN, Julian ,  WACKERBARTH, Dr. Hainer ,  WANG, Zheng ,  DACH, Fabian

IPC分类号： G01N21/65 ,  G01N21/41 ,  G01J3/44 ,  G01N21/31