📘 ❞ Chiral Separations_ Methods and Protocols-Humana Press ❝ كتاب ــ Gerald Gübitz Martin G. Schmid اصدار 2003
Biology Books - 📖 ❞ كتاب Chiral Separations_ Methods and Protocols-Humana Press ❝ ــ Gerald Gübitz Martin G. Schmid 📖
█ _ Gerald Gübitz Martin G Schmid 2003 حصريا كتاب Chiral Separations_ Methods and Protocols Humana Press 2024 Press: نبذه عن الكتاب: Gerald Gübitz Martin Schmid 1 Introduction The development of methods for chiral separation on an analytical as well as a preparative scale has attracted great attention during the past two decades Chromatographic such gas chromatography (GC) (1), high performance liquid (HPLC) (2–6), supercritical fluid chromatography (SFC) (7–9), thin layer (TLC) (10–13) have been developed using different principles More recently, capillary electrophoresis (CE) (14–21) electrochromatography (CEC) (22–25) have been shown to be powerful alternatives chromatographic Several separation successfully used in HPLC transferred CE and CEC For enantiomers scale, LC become increasingly attractive The main domain electromigration techniques is obviously enantiomer purity control in synthesis, check racemization processes, pharmaceutical quality control, pharmacokinetic studies, etc Chromatographic separations can be carried out either indirectly by derivatization reagents form diastereomeric derivatives or directly selectors, which incorporated stationary phase mobile Similarly, CE, indirect and direct ways are possible, thereby, latter approach, selector is simply added electrolyte CEC represent new hybrid method between Accordingly, the selector present Open tubular capillaries containing coated wall and packed A trend is move away from packed capillaries Biology Books مجاناً PDF اونلاين Biologically Biology natural science that concerned with study life, its various forms function, how these organisms interact each other surrounding environment The word biology Greek made up words: bio (βίος) meaning life And loggia ( λογία) means Biology: similarity vegetation animal cover edges African American states, existence same fossil Branches biology Biology ancient thousands years old modern began nineteenth century This multiple branches Among them are: Anatomy Botany Biochemia Biogeography Biofisia Cytology cell science Ecology environmental science Development Embryology embryology Genetics genetics Histology histology Anthropology anthropology Microbiology bacteriology Molecular Biology Physiology functions organs Taxonemia taxonomy Virology virology Zoology zoology
كتاب
Chiral Separations_ Methods and Protocols-Humana Press
ــ Gerald Gübitz Martin G. Schmid
صدر 2003م
كتاب
Chiral Separations_ Methods and Protocols-Humana Press
ــ Gerald Gübitz Martin G. Schmid
صدر 2003منبذه عن الكتاب:
Gerald Gübitz and Martin G. Schmid
1. Introduction
The development of methods for chiral separation on an analytical as well
as on a preparative scale has attracted great attention during the past two decades.
Chromatographic methods such as gas chromatography (GC) (1), high-performance liquid chromatography (HPLC) (2–6), supercritical fluid chromatography
(SFC) (7–9), and thin-layer chromatography (TLC) (10–13) have been developed using different chiral separation principles. More recently, capillary electrophoresis (CE) (14–21) and capillary electrochromatography (CEC) (22–25) have
been shown to be powerful alternatives to chromatographic methods. Several
separation principles successfully used in HPLC have been transferred to CE and
CEC. For the separation of enantiomers on a preparative scale, LC has become
increasingly attractive.
The main domain of chromatographic and electromigration techniques is
obviously the separation on an analytical scale for enantiomer purity control in
synthesis, check for racemization processes, pharmaceutical quality control,
pharmacokinetic studies, etc. Chromatographic enantiomer separations can be
carried out either indirectly by using chiral derivatization reagents to form diastereomeric derivatives or directly using chiral selectors, which can be incorporated either in the stationary phase or the mobile phase. Similarly, in CE, indirect
and direct ways are possible, thereby, in the latter approach, the chiral selector
is simply added to the electrolyte.
CEC represent a new hybrid method between HPLC and CE. Accordingly,
the chiral selector can be present in the mobile phase or in the stationary phase.
Open tubular capillaries containing the stationary phase coated to the wall and
packed capillaries are used. A new trend is to move away from packed capillaries
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