ScienceJohn Michels (Journalist) 1946 |
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Page 432
... reaction no antibiotic activity was pro- duced ( 5 ) . Although during the next year a considerable num- ber of experiments by many laboratories were re- ported , in which the two compounds ( d - penicillamine hydrochloride and 2 ...
... reaction no antibiotic activity was pro- duced ( 5 ) . Although during the next year a considerable num- ber of experiments by many laboratories were re- ported , in which the two compounds ( d - penicillamine hydrochloride and 2 ...
Page 433
... reaction mixture which contained activity equivalent to about 0.1 per cent benzylpenicillin . The difficulty of isolation of the penicillin from the reaction mixture was enhanced by its innate instability . The method of fractionation ...
... reaction mixture which contained activity equivalent to about 0.1 per cent benzylpenicillin . The difficulty of isolation of the penicillin from the reaction mixture was enhanced by its innate instability . The method of fractionation ...
Page 504
... reaction , ( 2 ) 4 Fe + 3 + 2 HOH → 4 Fe + 2 + 4 H + + O2 , which , of course , bears some analogy to that of photo- synthesis . Further validation of the course of the reaction as following Equation ( 2 ) is afforded by recent work of ...
... reaction , ( 2 ) 4 Fe + 3 + 2 HOH → 4 Fe + 2 + 4 H + + O2 , which , of course , bears some analogy to that of photo- synthesis . Further validation of the course of the reaction as following Equation ( 2 ) is afforded by recent work of ...
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acid activity Agricultural Amer American animals anoxia antibiotic appointed assistant Association atomic Bacteriology benzylpenicillin Biol biological blood Bureau California cent chairman Chem chemical chemistry clinical colchicine collection College Committee compounds concentration culture curator Department director disease Division effect electron electron microscope Engineering experimental experiments factor field folic acid geology glucose grams growth Health hyaluronidase Illustrated industrial injection investigation Laboratory lignin material Medical Medicine ment method Museum National natural neptunium normal observed obtained Ohio State University organization papers penicillin physics physiology plant plutonium poliomyelitis prepared present problems production professor publication reaction recently References samples School Science scientific scientists Section serum Service silicate Smithsonian Institution social Society sodium soil solution species staff streptomycin streptothricin temperature thiouracil tion tissue United Univ University virus volume Washington Washington Square Philadelphia York