Bauhaus-Universität Weimar

Titel:
Reports of Visits to Foreign Laboratories, vol. 2 (1910) [Illustrated Typoscript in 7 volumes] Reproduced with the kind permission of Dr. Cecil E. Leith
Person:
Benedict, Francis Gano
PURL:
https://digitalesammlungen.uni-weimar.de/viewer/image/lit39745/115/
107 
Dr. Neubauer. 
Dr. Neubau or is very serious, very intense, and an indefatigable 
worker. Ile uses the Ilernst light as a source of monochromatic light, 
v;ith a saturated solution of potassium bichromate. The results,, he 
says, are very satisfactory, particularly as all the results are com¬ 
pared with one another. He deprecates strongly the use of animal char¬ 
coal in filtering solutions containing B-oxybutyric acid for he maintains 
that the acid is held back by the charcoal. The transition from 3-oxy- 
butyric acid to diacetic acid, he believes, is more or less of a rever¬ 
sible reaction, and in normal individuals there is no retardation of 
these oxidation steps. In diabetics there is probably a retardation 
after the diacetic acid step. Both B-oxybutyric acid and diacetic 
acid should be in about the same proportion, if there is equilibrium. 
As a matter of fact, he has recently found that this is so. Dr. Ileubauer 
has also made a number of important experiments on the syntheses in the 
living organ with artificial circulation. His theory with regard to the 
reversible reaction between B-oxybutyric and diacetic acid is certainly 
very interesting and worthy of further study.
        

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