High-performance liquid chromatographic separation and proton nuclear magnetic resonance identification of the 6-mono-cis and 6,6′-di-cis isomers o rhodoxanthin

1982 ◽  
Vol 235 (1) ◽  
pp. 197-203 ◽  
Author(s):  
Gerhard Englert ◽  
Max Vecchi
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Chromatographic Separation ◽  
High Performance ◽  
High Performance Liquid Chromatographic ◽  
Proton Nuclear Magnetic Resonance ◽  
Liquid Chromatographic Separation ◽  
Liquid Chromatographic ◽  
Nuclear Magnetic

Preparation and Characterization of Af latoxin Q1-Hemisuccinate

1981 ◽  
Vol 64 (3) ◽  
pp. 681-683
Author(s):  
H P Lau ◽  
S L Fan ◽  
F S Chu
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Thin Layer ◽  
High Performance ◽  
High Performance Liquid Chromatographic ◽  
Spectral Analyses ◽  
Liquid Chromatographic ◽  
Final Purification ◽  
Nuclear Magnetic

Abstract A method for the preparation and purification of aflatoxin Q1-hemisuccinate is described. The overall yield after final purification was about 80-85% of the starting aflatoxin Q1. The new aflatoxin derivative was characterized by thin layer chromatographic, high performance liquid chromatographic, ultraviolet, mass spectroscopic, and nuclear magnetic resonance spectral analyses.

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