More information on the
Aerosol Fluorescence Sensor

OPERATION

The sensor is based on UV-LIF and uses an excitation source which is capable of producing fluorescence from common amino acids found in living matter.

The fluorescence can be used as an indicator as to the content of the sampled aerosol and in particular as a discriminator between biological and non-biological materials.

Furthermore, the sensor provides generic information as to the constituents of the biological material based on the difference in the fluorescence response between the two fluorescence detection channels.

These channels are :

• Channel 1 (designated UV): 330  -  650 nm
• Channel 2 (designated Vis): 420 -  650 nm

The specific amino acids targeted by the fluorescence channels are Tryptophan and Tyrosine in the UV channel and NADH and Riboflavin in the visible channel.