Introduction to Modern Liquid Chromatography, Third Edition part 14 pps
... 130 3.8.5 Report Generation, 130 3.8.6 Regulatory Functions, 130 3.9 EXTRA-COLUMN EFFECTS, 131 Introduction to Modern Liquid Chromatography, Third Edition, by Lloyd R. Snyder, Joseph J. Kirkland, ... the pump. The frit acts as a weight to keep the inlet tubing at the bottom of the reservoir, but its primary function is to provide backup filtration to remove particulate matte...
Ngày tải lên: 04/07/2014, 01:20
... 651 13.10.3 Liquid- Chromatography Modes for Polymer Analysis, 653 13.10.3.1 Size-Exclusion Chromatography, 653 13.10.3.2 Interactive Liquid Chromatography, 653 13.10.3.3 Liquid Chromatography under Critical ... Anion-Exchange Chromatography, 619 13.5.2 Reversed-Phase Chromatography, 620 xxiv CONTENTS 14. 6 Chiral Stationary Phases and Their Characteristics, 681 14. 6.1 Polysac...
Ngày tải lên: 04/07/2014, 01:20
... the early days of HPLC the technique was sometimes referred to as ‘‘high-pressure liquid chromatography’’ or ‘‘high-speed liquid chromatography, ’ for reasons suggested by Figure 1.5g. Figure 1.5h ... liquid liquid partition chromatography that was later improved in various ways. HPLC with a liquid stationary phase was since replaced by bonded-phase HPLC, the use of CCC as an alter...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 13 ppsx
... Chromatogr. A, 1119 (2006) 140 . 22. J. C. Giddings, Dynamics of Chromatography, Part 1, Principles and Theory, Dekker, New York, 1965. 23. G. Guiochon, in High-Performance Liquid Chromatography. ... Snyder and J. J. Kirkland, Introduction to Modern Liquid Chromatography, 2nd ed., Wiley-Interscience, New York, 1979, pp. 34–36. 46. Reviewer Guidance. Validation of Chromatograp...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 33 pps
... different samples and chromatographic modes; this topic is addressed below and in individual chapters that focus on sample type and/or chromatographic mode (Chapters 6–9, 13, and 14) . Finally, when the ... 6 .14, compared to the Symmetry column, values of F s (−C) are equal to 26 for the Alltima column, 12 for the Luna column, and 16 for the Spherisorb column. A value of F s (−C) >...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 34 ppsx
... in flow rate from 2.0 to 1.0 mL/min (not shown) results in an insignificant increase in resolution (to R s = 1.2), while run time is doubled to 10 min. Alternatively, the particle size can be reduced, ... Sample and con- ditions as in Figure 6 .14, except as indicated in figure. Chromatograms recreated from data of [8, 9, 69]. form a single column. Two alternatives to the latter procedur...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 40 pps
... the analysis of any mixture that contained organic acids or bases. Together with liquid liquid partition and adsorption chromatography, IEC then accounted for most of the reported separations ... CHROMATOGRAPHY (IEC) Ion-exchange chromatography (IEC) is an important separation technique, but for the most part, today, with limited applications: • mixtures of inorganic ions (ion chromatogr...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 41 pps
... chromatography (NPC). Another term used to describe NPC is adsorption chromatography,in recognition of the fact that retained solute molecules are attached to (or adsorbed onto) the surface of particles ... standards by anion-exchange chro- matography with amperometric detection. Sample: 1, myo-inositol; 2, D-sorbitol; 3, lactitol; 4, L-fructose; 5, rhamnose; 6, D-galactose; 7, D-glucosam...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 43 pps
... affected by which isomer can better position itself adjacent to the surface, so as to allow each polar methoxy group in the molecule to interact with an adjacent silanol group on the surface. In ... provided in Figure 8 .14 for the separation of five isomers of the com- pound retinol. In the RPC separation of Figure 8.14a, there is little separation of 382 NORMAL-PHASE CHROMATOGRAPHY Cy...
Ngày tải lên: 04/07/2014, 01:20
Introduction to Modern Liquid Chromatography, Third Edition part 45 pps
... Chromatography (NPC), 466 9.5.3 Hydrophilic Interaction Chromatography (HILIC), 467 9.5.4 Ion-Exchange Chromatography (IEC), 470 9.6 PROBLEMS, 470 Introduction to Modern Liquid Chromatography, Third ... 1999, http://www.lschrom.com. 21. M. Z. Kagan, J. Chromatogr. A, 918 (2001) 293. 22. L. R. Snyder and J. J. Kirkland, Introduction to Modern Liquid Chromatography, 2nd ed...
Ngày tải lên: 04/07/2014, 01:20