Results 111 to 120 of about 78,209 (163)

Use of Cyclodextrins for Separation of Enantiomers

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Oleg A Shpigun, Irina A Ananieva, Natal'ya Yu Budanova, Elena N Shapovalova   +3 more
openaire   +1 more source

Separation and toxicity of salithion enantiomers

Chirality, 2009
AbstractEnantioseletive toxicities of chiral pesticides have become an environmental concern recently. In this study, we evaluated the enantiomeric separation of salithion on a suite of commercial chiral columns and assessed the toxicity of enantiomers toward butyrylcholinesterase and Daphnia magna.
Shanshan, Zhou, Kunde, Lin, Ling, Li, Meiqing, Jin, Jing, Ye, Weiping, Liu   +5 more
openaire   +2 more sources

Enantiomer Separations by Capillary Electrophoresis

2016
Capillary electrophoresis (CE) is a versatile and flexible technique for analytical enantioseparations. This is due to the large variety of chiral selectors as well as the different operation modes including electrokinetic chromatography, micellar electrokinetic chromatography, and microemulsion electrokinetic chromatography. The chiral selector, which
Scriba, Gerhard K. E., Harnisch, Henrik, Zhu, Qingfu   +2 more
openaire   +3 more sources

Separation of enantiomers: needs, challenges, perspectives

Journal of Chromatography A, 2001
Chiral drugs, agrochemicals, food additives and fragrances represent classes of compounds with high economic and scientific potential. First the present implications of their chiral nature and necessity of separating enantiomers are summarised in this article.
Maier, Norbert, Franco, Pilar, Lindner, Wolfgang   +2 more
openaire   +3 more sources

Enantiomer separation by CEC

Science in China Series B: Chemistry, 1999
Three chiral compounds were successfully separated in a short time with two enantiomer separation models on packed-capillary electrochromatography (CEC). (i) 75 μm I.D. capillaries were packed with 5 μm β-cyclodextrin (βCD) chiral stationary phase (CSP).
Jun Zhu, Hanfa Zou, Wei Shi, Jianzhong Rui, Jianyi Ni, Yukui Zhang   +5 more
openaire   +1 more source

Polysaccharide Derivatives for Chromatographic Separation of Enantiomers

Angewandte Chemie International Edition, 1998
The first resolution of enantiomers was performed 150 years ago-mechanically. Today a powerful method for carrying out this task is HPLC on polysaccharide derivatives as chiral stationary phases. Most racemates, from an analytical to a preparative scale, now appear to be resolved by this technique.
Yoshio, Okamoto, Eiji, Yashima
openaire   +2 more sources

Separations of enantiomers by preparative capillary isotachophoresis

Electrophoresis, 1999
The use of capillary isotachophoresis (ITP), operating in a discontinuous fractionation mode, for preparative separations of enantiomers of chiral compounds was studied. The ITP separations were carried out in the column-coupling configuration of the separation unit provided with the preseparation column of a 1.0 mm ID and the trapping column of a 0.8 ...
D, Kaniansky, E, Simunicova, E, Olvecká, A, Ferancová   +3 more
openaire   +2 more sources

Separation of the enantiomers of the aminonaphthylalanines by paper chromatography

Analytical Biochemistry, 1966
Abstract Resolution of enantiomers of certain aminonaphthylalanines has been achieved by conventional paper chromatography in n -butanol:pyridine:water (1:1:1). The materials have been characterized as enantiomers by their optical properties and this has been confirmed by reaction with l -amino acid oxidase.
P, Zaltzman-Nirenberg, J, Daly, G, Guroff, S, Udenfriend   +3 more
openaire   +2 more sources

Resolution/separation of enantiomers

Biomedical Chromatography, 2013
Shuchi, Dixit, Ravi, Bhushan
openaire   +2 more sources

The importance of enantiomer separations

1989
Since the discovery of the optical isomerism of tartaric acid by Louis Pasteur in 1848, the significance of stereoisomerism in relation to biological activity has been recognized. It was soon seen that the separation of a racemic mixture into its component stereoisomers presented a challenge of immensely greater magnitude than did the development of a ...
openaire   +1 more source