ScienceJohn Michels (Journalist) 1959 |
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Стр. 274
... Acid Abstract . Various purification proce- dures for folic acid were investigated . The criteria of purity were a negative Bratton- Marshall test and the absence of fluores- cent spots on paper chromatograms . Since no method provided ...
... Acid Abstract . Various purification proce- dures for folic acid were investigated . The criteria of purity were a negative Bratton- Marshall test and the absence of fluores- cent spots on paper chromatograms . Since no method provided ...
Стр. 617
... acid ( folacin or pteroylglutamic acid . See Fig . 1. ) It has been demon- strated that in bacteria which are in- hibited by sulfanilamide , the formation of folic acid and its derivatives is pre- vented . The enzyme system which makes ...
... acid ( folacin or pteroylglutamic acid . See Fig . 1. ) It has been demon- strated that in bacteria which are in- hibited by sulfanilamide , the formation of folic acid and its derivatives is pre- vented . The enzyme system which makes ...
Стр. 897
... acid ( 10 g / 1000 ml ) , measured after 3 weeks of treatment . Height is expressed as percentage of that of ... acid ( 45 ) 36 14 Indoleacetic acid ( 30 ) 37 13 B - Naphthoxyacetic acid ( 30 ) 30 20 a - O - Chlorophenoxy- acetic acid ...
... acid ( 10 g / 1000 ml ) , measured after 3 weeks of treatment . Height is expressed as percentage of that of ... acid ( 45 ) 36 14 Indoleacetic acid ( 30 ) 37 13 B - Naphthoxyacetic acid ( 30 ) 30 20 a - O - Chlorophenoxy- acetic acid ...
Содержание
POLARIMETER | 162 |
Speed versatility and convenience in measuring | 219 |
Volume 10 1959 | 291 |
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