measurable crystal of the Corpus who prepared and prepare
Answers
Answered by
0
The preparation from corpus luteum extracts of a crystalline
fraction which contained progestin has already been announced
from at least three laboratories (Fels and Slotta (l), Fevold and
Hisaw (2), Allen (3)), but no definite details of the physical properties
were given. The preparation with which we were working
in the laboratory at Rochester was certainly not a chemically pure
substance, and in view of what we have subsequently found it
probably was at least 50 per cent contaminated, as judged by its
potency compared to that of the crystalline fractions about to be
described. Those of Fels and Slotta and Fevold and Hisaw cannot
be similarly appraised because neither group of workers gave data
regarding the weight of solids per rabbit unit of hormone.
Answered by
0
What ???????????..................,..,
Similar questions