56 



FLUORESCENCE SPECTROPHOTOMETRY 





COUPIIHC C(»« fjjKi /vAI 



Fig. 4. Reflection grating monochromator used for analyzing the fluorescent light. 



T 



T 



-r 



T 



T 



Abittttiei 



I II 1 1 > I ( • ( t 



400 



500 600 



WAVELENGTH 



± 



700 m)L 



Fig. 5. Absorption and fluorescence spectra of pure phycoerythrin in water. Meas- 

 urements of Dr. Violet K. Young on a sample of pure phycoerythrin kindly 

 given us by Professor Lawrence R. Blinks. (Redrawn from Rabinowitch, 1951, 

 Fig. 23.9A.) 



