[hunter & borsook] tryptophane IN HEMOGLOBIN 81 



solutions could be estimated. The Voisenet reaction is a less delicate 

 test for tryptophane than the glyoxylic test; it fails, as we have 

 ascertained by experiment, with a 0.001% solution, while the latter 

 is still faintly positive at 0.0001%. If Furth and Lieben had applied 

 the glyoxylic test to their globin solutions they might have come to a 

 different conclusion. 



Department of Biochemistry, 

 University of Toronto. 







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