TABLE 2.- ALGAL FLUORESCENCE CROSS SECTIONS FOR ALOPE SYSTEM 3 



a From reference 14 



TABLE 3.- OPTIMIZED FLUORESCENCE CROSS SECTIONS FOR FOUR-WAVELENGTH 



LASER FLUOROSENSOR SYSTEM 



Algal 

 color 

 group 



Green 



Golden-brown 

 Red 

 Blue-green 



Fluorescence cross section, m^ , at 

 excitation wavelength, nm, of - 



482 



1 .13 x 10-21 

 .42 

 .09 

 • 03 



520 



0.28 x 

 .28 

 .22 

 .03 



10 



-21 



562 



0.16 



.14 

 .64 

 .06 



10 



-21 



640 



0.39 x 10-21 

 .10 

 .13 

 .60 



29 



