VISUALIZATION OF BOUNDARIES IN THE ULTRACENTRIFUGE 



SCHLIEREN OPTICS 



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A 





RAYLEIGH INTERFERENCE OPTICS 



ULTRAVIOLET ABSORPTION OPTICS 



a 



Fig. 3. Visualization of boundaries in the ultracentrifuire. The upper two patterns with 

 schlieren optics and Rayleigh interference optics were obtained with a solution of bushy 

 stunt virus at 0.5 g/lOO ml. The lower pattern with ultraviolet absorption optics was 

 obtained Mith purified MEF-1 poliomyelitis virus at 0.01 g/100 ml. iSedimentation is 

 from left to right. 



