Chromatographic behaviour and purification of N1.5-glycosyl enkephalins

1988 ◽  
Vol 25 (10) ◽  
pp. 891-894 ◽  
Author(s):  
J. L. Torres ◽  
P. Clapés ◽  
I. Haro ◽  
G. Valencia ◽  
F. Reig ◽  
...  
Keyword(s):  
Chromatographic Behaviour

Urobiliverdin, a New Bile Pigment Deriving from Uroporphyrin

1983 ◽  
Vol 38 (9-10) ◽  
pp. 753-757 ◽  
Author(s):  
Eva Benedikt ◽  
Hans-Peter Köst
Keyword(s):  
Carboxylic Acid ◽  
Main Product ◽  
Aminolevulinic Acid ◽  
Chromic Acid ◽  
Bile Pigment ◽  
Enzyme Extract ◽  
Crude Enzyme Extract ◽  
Chromatographic Behaviour ◽  
Vis Spectroscopy ◽  
Rhodopseudomonas Spheroides

5-Aminolevulinic acid is incubated with a crude enzyme extract from Rhodopseudomonas spheroides, mutant R 26. The formed porphyrins (main product: uroporphyrin III) are isolated. Incorporation of iron, ring-splitting by coupled oxydation and subsequent iron removal leads to a mixture of pigments, from which urobiliverdin, a new bile pigment with eight carboxylic acid side chains, is isolated. It is characterized by its chromatographic behaviour, chromic acid degra­dation and UV-vis spectroscopy.

Chromatographic behaviour of novel zinc(II) carboxylates with nitrogen-donor ligands Part I. Formates and acetates

1994 ◽  
Vol 291 (1-2) ◽  
pp. 169-181 ◽  
Author(s):  
A. Orin̆ák ◽  
E. Matisová ◽  
K. Györyová ◽  
L. S̆lesárová
Keyword(s):  
Donor Ligands ◽  
Nitrogen Donor Ligands ◽  
Chromatographic Behaviour ◽  
Nitrogen Donor
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