Bioaerosol detection using single particle triggered LIBS

Anders Larsson; Annelie Karlsson; Per-Åke Gradmark; Lars Landström

doi:10.1117/12.2223717

12 May 2016 Bioaerosol detection using single particle triggered LIBS

Anders Larsson, Annelie Karlsson, Per-Åke Gradmark, Lars Landström

Proceedings Volume 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII; 98240S (2016) https://doi.org/10.1117/12.2223717
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

A prototype LIBS system, measuring on single aerosol particles sampled from ambient air, has been developed for BWA detection purposes. To further discriminate measurement sampling, a 405 nm induced fluorescence trigger stage has recently been incorporated. The induced fluorescence, as well as the scattered light, was measured on monodisperse NADH and NaCl aerosols in the ~1-7 μm range as well as on dispersions of various simulant bioaerosols and interferents. Finally, the discrimination of sampling for LIBS measurements was demonstrated on NADH particulates in high non-fluorescent aerosol background.

Citation Download Citation

Anders Larsson, Annelie Karlsson, Per-Åke Gradmark, and Lars Landström "Bioaerosol detection using single particle triggered LIBS", Proc. SPIE 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII, 98240S (12 May 2016); https://doi.org/10.1117/12.2223717

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