ScienceJohn Michels (Journalist) 1959 |
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Page 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 ...
Page 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 ...
Page 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 ...
Contents
POLARIMETER | 162 |
Speed versatility and convenience in measuring | 219 |
Volume 10 1959 | 291 |
3 other sections not shown
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900 North Michigan AAAS acetylcholine acid activity American amino acids ammonia animals areas Association Atomic basic behavior biochemical biological California carnitine cells Center Chem chemical chemistry Chicago citron cloud College Colorimeters Committee Council crystals culture Department Dept director effects electron ence energy Engineering enzyme experience field folic acid genetic glycine gram hemoglobin hydroxyproline ical Institute instrument International laboratory measurements mechanism Medical ment methemoglobin microscope mitochondria Model National National Science Foundation nictitating membrane nuclear nuclei observed operation optical organic papers percent Ph.D physics plant present president problems production protein protozoa radiation range References and Notes Ruth Benedict samples School Science scientific scientists Society soil Soviet specific surface Technology temperature theory tion tissue ture United Univ University volume Washington World Data Center York