A unmarried resource of authoritative details on all elements of the perform of recent liquid chromatography appropriate for complex scholars and execs operating in a laboratory or managerial capacity
Chapters written by way of authoritative and visionary specialists within the box supply an summary and centred therapy of a unmarried topic
Comprehensive assurance of recent liquid chromatography from concept, to tools, to chose applications
Thorough chosen references and tables with prevalent info to facilitate examine, functional paintings, comparability of effects, and choice making
Extensive unique tables and figures, putting fresh study advancements right into a basic context
Worked examples, intuitive reasons, and transparent figures toughen studying
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Additional info for Liquid Chromatography: Fundamentals and Instrumentation
3. 1. 2. 3. 4. 00002-X 19 Copyright Ó 2013 Elsevier Inc. All rights reserved. 20 2. 1. INTRODUCTION Chromatographic processes are described by either equilibrium or kinetic theories. Equilibrium theories can be employed when the masstransfer and adsorptionedesorption processes are so rapid that a constant equilibrium state is established between the mobile and the stationary phases. Mass-transfer processes are, however, quite often slow, and accordingly, nonequilibrium conditions emerge. This is particularly the case during the separation of large biomolecules, when the mass-transfer and adsorptionedesorption processes are rather slow and equilibrium concepts are no longer valid.
No simple experiments can tell the relative importance of the contributions of pore diffusion, axial dispersion, the mass-transfer resistances, or the adsorption kinetics to the total width of a chromatographic peak. Complex series of independent measurements are needed to determine the numerical values of their parameters. Since the constants of the general rate model cannot easily be obtained, simpler models are usually sought for and applied. 18) H ¼ uh Fe k1 þ 1 3kf 15Dp General-Rate Model of Monolith Columns The structure of the stationary phase in a monolithic chromatographic column is very much like that of a foam with interconnected bubbles and a bimodal pore-size distribution.
Chemica Scripta 1981;18:248.  Dondi F, Cavazzini A, Martin M. Correspondence between chromatography, single-molecule dynamics, and equilibrium: a stochastic approach. Adv Chromatogr 2005; 43:179. K. Unger *, S. Lamotte y, E. 1. 2. 1. 2. 3. 3. 1. 2. 3. 4. 1. 2. 3. 4. 5. 6. 00003-1 41 63 65 66 66 66 66 Copyright Ó 2013 Elsevier Inc. All rights reserved. 42 3. 5. 1. 6. 1. 2. 7. 1. 2. 3. Conclusion: Where Do We Go Next? Science vs. 1. INTRODUCTION Liquid chromatography (LC) has gained a dominant position in the life sciences and has a strong impact on all facets of human life .