Introduction to Modern Liquid Chromatography, Third Edition part 81 doc
Introduction to Modern Liquid Chromatography, Third Edition part 81 doc
... Modern Methods for Extracting Solids, 793
16.9 COLUMN-SWITCHING, 796
Introduction to Modern Liquid Chromatography, Third Edition, by Lloyd R. Snyder,
Joseph J. Kirkland, and John W. Dolan
Copyright ... removal but also to remove particulates.
16.4 SAMPLE PREPARATION FOR LIQUID SAMPLES
Table 16.2 provides an introduction to sample preparation methods for liquid sam-
pl...
Introduction to Modern Liquid Chromatography, Third Edition part 8 doc
... into sample retention as a function of
the solute, column, and mobile phase; it also represents more information than is
usually required in practice. The reader may therefore prefer to skip to ... instant of time (as in Fig 2.8a), and this will cause the
electrons in adjacent atom X to move as shown (due to coulombic repulsion). The
result is an instantaneous dipole moment for both S...
Introduction to Modern Liquid Chromatography, Third Edition part 27 doc
... meaning that pressure is required to force water into
the pores. If the pressure P is insufficient to force a highly aqueous mobile phase
into all the pores of the particle, solute molecules will ... is
recommended to store the column with 100% acetonitrile as fill solvent. If the
mobile phase is then changed to a lower value of %B while maintaining the column
pressure, de-wetting is le...
Introduction to Modern Liquid Chromatography, Third Edition part 28 docx
... 5.22b), the ligands are further apart, so as to allow access of both
narrow and wide molecules (i and j) to the stationary phase. When a molecule
has access to the stationary phase, steric exclusion ... surface area of the particle.
5.4.1.2 Shape Selectivity
The following, minor digression examines two distinct forms of steric exclusion; for
now, the reader may prefer to skip to Sec...
Introduction to Modern Liquid Chromatography, Third Edition part 37 docx
... solutes 1 to 5 increases in proceeding from the Inertsil to the Symmetry to the
Discovery column (note the retention ranges for peaks 1–5 in Fig. 7.9b, indicated at
the top of each chromatogram ... C
18
column (5-μm particles); mobile phase, 13% acetonitrile-buffer
(buffer is citrate plus phosphate); 2.0 mL/min; 35
◦
C. Peaks for basic compounds 5 to 7 are
shaded. Chromatograms based...
Introduction to Modern Liquid Chromatography, Third Edition part 71 docx
... CONSIDERATIONS, 715
14.7.1 Thermodynamics of Solute-Selector Association, 715
Introduction to Modern Liquid Chromatography, Third Edition, by Lloyd R. Snyder,
Joseph J. Kirkland, and John W. Dolan
Copyright ... Reversed-Phase High Performance Liquid Chromatography,Aca-
demic Press, New York, 1984.
169. A. M Striegel, W. W Yau, J. J Kirkland, and D. D Bly, Modern Size-Exclusio...
Introduction to Modern Liquid Chromatography, Third Edition part 76 doc
... coworkers led in 1 981 to the
first commercialized CSP with a DNB-phenylglycine derivative immobilized ionicly
onto silica. Later this synthetic chiral selector was grafted onto silica via a covalent
amide ... donor-acceptor phases
have also proved to be valuable tools for SFC enantiomer separation [150, 151].
14.6.8 Chiral Ion-Exchangers
Chiral ion-exchangers utilize ionizable selectors...
Introduction to Modern Liquid Chromatography, Third Edition part 77 docx
... Development for Gradient Prep-LC, 753
15.6 PRODUCTION-SCALE SEPARATION, 754
Introduction to Modern Liquid Chromatography, Third Edition, by Lloyd R. Snyder,
Joseph J. Kirkland, and John W. Dolan
Copyright ... Chromatogr. A, 906 (2001) 379.
62. P. Franco, A. Senso, L. Oliveros, and C. Minguill
´
on, J. Chromatogr. A, 906 (2001)
155.
63. T. Ikai, C. Yamamoto, M. Kamigaito, and Y. O...
Introduction to Modern Liquid Chromatography, Third Edition part 92 doc
... leakage Damaged rotor seal Clean, replace rotor seal;
may require stator
replacement.
External leaks not at
fittings
Worn rotor seal Clean, replace rotor seal
Insufficient
rotor -to- seal
pressure
Adjust
Seal-pack ... replace
Non-UV detector See Chapter 4 and
operator’s
manuals
Table 17.4
Pressure Problems (Section 17.4.2): Symptoms and Sources
Symptom Location/Symptom Possible Source Solution...
Introduction to Modern Liquid Chromatography, Third Edition part 95 pdf
... detector, see Detectors,
MS
Troubleshooting; see also Troubleshooting
symptoms
adsorption of sample, 818 819
air, removing from pump, 814
baseline drift, 817
best practices, 814 819
blockages, 814
bubbles, ... isolation, 819 –821
problem prevention, 811 819
problem symptoms; see Troubleshooting,
symptoms
quick fix, 812 813
records, 813 814
retention-time, changes, 836–838
siph...
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