Countercurrent chromatography

Ebook "Ionic liquids II" provides readers with contents including: ionic liquids in lithium-ion batteries; ionic liquids for supercapacitor applications; electrochemical synthesis of battery electrode materials from ionic liquids; ionic liquid–liquid chromatography - a new general purpose separation methodology; proteins in ionic liquids - current status of experiments and simulations;...

295p tracanhphuonghoa1007 22-04-2024 3 2   Download

Ebook "Chiral recognition in separation methods: Mechanisms and applications" reminds us that vancomycin, one of the macrocyclic glycopeptide selectors, has strong antibiotic properties and proposes, using vancomycin as an example, and that the antibiotic and enantioselective interactions are related. Solvent effects are very important and yet very difficult to predict accurately. The different author approaches should give an idea to the reader on the complexity of the chiral separation problem.

349p manmanthanhla0201 26-02-2024 2 1   Download

In this study, the pre-purified pigment extracts from the cactus fruits of Opuntia stricta var. dillenii (Opuntia) and vegetable leaves from Atriplex hortensis var. rubra (Atriplex) were fractionated by high performance CCC (HPCCC) using the ion-pair solvent system of tert.-butylmethyl-ether/n-butanol/acetonitrile/water, trifluoroacetic acid (TBMe/n-BuOH/ACN/water) (v/v/v/v, 2:2:1:5, 1% TFA).

7p vicedric 08-02-2023 5 2   Download

This paper builds on the fact that high aspect ratio rectilinear tubing columns of the same length and outside dimensions can double column efficiency. It demonstrates that further improvements in efficiency can be made by using rectilinear tubing columns with half the wall thickness thus replacing heavy PTFE with light solvent systems and producing lighter higher capacity columns.

6p viginny 23-12-2022 6 3   Download

Multicolumn Countercurrent Solvent Gradient Purification (MCSGP) is a continuous chromatography technique used to maximize purification yields compared to traditional batch purification methods. Here we apply MCSGP for the reversed phase purification of a N-acetylgalactosamine (GalNAc)-cluster-conjugated DNA-LNA gapmer oligonucleotide therapeutic using a twin-column chromatography system.

8p viginny 23-12-2022 12 3   Download

The Analytical Instrumentation Handbook serves as a guide for workers in analytical chemistry, who need a starting place for information about a specific instrumental technique, either as a basic introduction to it or as a means of finding leading references dealing with theory and methodology for an instrumental technique. The chapters which appeared in the second edition have been thoroughly expanded and updated, with concepts, applications, and key references to the recent literature.

1043p echbuon 02-11-2012 86 15   Download