Continuous Separation of Racemic 3,5-Dinitrobenzoyl-Amino Acids in a Centrifugal Contact Separator with the Aid of Cinchona-Based Chiral Host Compounds
作者:Andrew J. Hallett、Gerard J. Kwant、Johannes G. de Vries
DOI:10.1002/chem.200800797
日期:2009.2.16
Resolution through revolution: It is possible to extract 3,5‐dinitrobenzoyl‐protected amino acids enantioselectively with the aid of a table‐top centrifugalcontactseparator and a catalytic amount of a chiral host compound based on the Cinchona alkaloids. Enantioselectivities of up to 80 % could be reached in a single pass. This allows the development of a process for the continuous separation of
Improvement of chiral separation efficiency through temperature control during one time high performance liquid chromatography analysis
作者:Dan Bi Eun、Young Han Jeong、Jae Jeong Ryoo
DOI:10.1002/chir.23444
日期:2022.7
study examined how manual temperature control affects the separation of two enantiomers of five racemic mixtures using high-performance liquidchromatography (HPLC) in terms of separation factor (α), resolution (Rs), and the number of theoretical plates (N). The results showed that heating/cooling during one time HPLC analysis improved the separation factor and resolution.