منابع مشابه
Countercurrent Chromatography and High Speed Countercurrent Chromatography: Instrumentation
Engelsma M, KokWT and Smit HC (1990) Selective determination of trace levels of phenol in river water using electrochemical concentration modulation. Journal of Chromatography 506: 201}210. Fister JC, Jacobson C and RamseyM (1999) Ultra sensitive cross correlation electrophoresis on microdevices. Analytical Chemistry 71: 4460}4464. Kaljurand M and KuK llik E (1989) Computerized Multiple Input C...
متن کاملSpiral countercurrent chromatography.
For many years, high-speed countercurrent chromatography conducted in open tubing coils has been widely used for the separation of natural and synthetic compounds. In this method, the retention of the stationary phase is solely provided by the Archimedean screw effect by rotating the coiled column in the centrifugal force field. However, the system fails to retain enough of the stationary phase...
متن کاملMultistage Countercurrent Distribution
(1997) Analytica Chimica Acta 344: 241}249. 23. Llompart MP, Lorenzo RA, Cela R, PareH JRJ, BeH langer JMR and Li K (1997) Journal of Chromatography A 757: 153}164. 24. Llompart MP, Lorenzo RA, Rosa A, Cela R, Li K, BeH langer JMR and Pare JRJ (1997) Journal of Chromatography A 774: 243}251. 25. Chee KK, Wong MK and Lee HK (1996) Journal of Liquid Chromatography and Related Technology 19: 259}2...
متن کاملMicrochip countercurrent electroseparation.
We report a microchip-based method for separating charged molecules according to electrophoretic mobility. The method is based on opposed electroosmotic, electrophoretic and convective forces. Similar to isoelectric focusing, solute can be accumulated into stationary zones, but without use of ampholytes. The method of "microchip countercurrent electroseparation" described here has potential app...
متن کاملpH-zone-refining countercurrent chromatography.
A recently developed preparative technique, pH-zone-refining countercurrent chromatography (CCC), separates organic acids and bases according to their pKa and hydrophobicity. The hydrodynamic mechanism of pH-zone-refining CCC is illustrated in two elution modes along with a simple mathematical analysis. Separations include acidic and basic derivatives of amino acids and peptides, hydroxyxanthen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Gastroenterology
سال: 1978
ISSN: 0016-5085
DOI: 10.1016/0016-5085(78)90908-3