Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Randy A. Menges"'
Publikováno v:
Analytical Chemistry. 65:2873-2877
Centrifugal partition chromatography (CPC) was used to fractionate a catalytic-cracking feedstock (i.e., catalytic cracker feed) into 16 separate fractions in the descending mode and 5 fractions in the inverse or ascending mode. Each fraction was ana
Publikováno v:
Journal of Liquid Chromatography. 15:2769-2785
Octanol-water partition coefficients. Koct, can be measured directly using countercurrent chromatography (CCC) with an octanol-water biphasic solvent system. The mobile phase is water saturated with octanol, and the stationary phase is octanol satura
Publikováno v:
Journal of Liquid Chromatography. 15:2909-2925
A novel method for the extraction of nonionic surfactants from waste water is described which uses centrifugal partition chromatography (CPC). The extractant is the liquid stationary phase of the CPC apparatus, and the raffinate serves as the mobile
Autor:
Daniel W. Armstrong, Randy A. Menges
Publikováno v:
Analytica Chimica Acta. 255:157-162
A shake-flask method is presented which uses a three-phase model to measure octanol-water and cyclodextrin-water partition coefficients. Equations are derived which account for all equilibria and which relate the cyclodextrin-water partition coeffici
Publikováno v:
Journal of Liquid Chromatography. 13:3571-3581
The growth of analytical methodologies for the separation of enantiomers has been impressive. Attention is now turning to the large scale separation of enantiomers. Often scaling-up sensitive analytical separations is ineffective and inefficient. Cen
Publikováno v:
Journal of Liquid Chromatography. 13:3061-3077
Octaol-water partitioning coefficients (Koct) are an accepted parameter in the prediction of biological activity of organic chemicals. Centrifugal Partition Chromatography (CPC), a form of counter current chromatography, is shown to have several dist
Autor:
Randy A. Menges, Daniel W. Armstrong
Publikováno v:
ACS Symposium Series ISBN: 9780841221161
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa83376c8d665c2feb57f5ff5c0b163a
https://doi.org/10.1021/bk-1991-0471.ch004
https://doi.org/10.1021/bk-1991-0471.ch004
Publikováno v:
Journal of Colloid and Interface Science. 126:239-242
The diffusion coefficients of small solutes can be significantly altered by the presence of association colloids such as micelles. A relationship is utilized that relates the diffusion coefficient of a solute to its partitioning or binding behavior t
Publikováno v:
Analytical chemistry. 59(21)
Autor:
SATINDER AHUJA, Thomas D. Doyle, S. R. Perrin, W. H. Pirkle, Randy A. Menges, Daniel W. Armstrong, Yoshio Okamoto, Yuriko Kaida, Ryo Aburatani, Koichi Hatada, S. G. Allenmark, E. Arvidsson, S. O. Jansson, G. Schill, Irving W. Wainer, Terence A. G. Noctor, Enrico Domenici, Philippe Jadaud, E. Gil-Av, Akira Dobashi, Yasuo Dobashi, Shoji Hara, Subhash C. Dhanesar, Hassan Y. Aboul-Enein, M. Rafiqul Islam, Veronika R. Meyer