Introduction to Modern Liquid Chromatography, Third Edition part 3 ppsx
Introduction to Modern Liquid Chromatography, Third Edition part 3 ppsx
... PolymerAnalysis, 6 53 13. 10 .3. 1 Size-Exclusion Chromatography, 6 53 13. 10 .3. 2 Interactive Liquid Chromatography, 6 53 13. 10 .3. 3 Liquid Chromatography underCritical Conditions, 655 13. 10 .3. 4 Other Techniques, ... 730 15.2.1 Columns, 730 15.2.2 Sample Introduction, 731 15.2.2.1 Loop Injectors, 731 15.2.2.2 Pump Injection, 732 15.2 .3 Detectors, 733 15.2 .3. 1 UV Detectors, 733 15.2 .3. 2 Other Detectors, 734 15.2.4 ... 634 13. 8.2.2 Pore Size and Porosity, 635 13. 8.2 .3 Particle Diameter, 636 13. 8.2.4 Increasing Resolution, 636 13. 8 .3 Mobile Phases for Gel Filtration, 636 13. 8.4 Operational Considerations, 637 13. 8.4.1...
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Introduction to Modern Liquid Chromatography, Third Edition part 13 ppsx
... W. Stout, J. J. Destefano, and L. R. Snyder, J. Chromatogr., 282 (19 83) 2 63. 34 . J. H. Knox and H. P. Scott, J. Chromatogr., 282 (19 83) 297. 35 . K. Miyabe, J. Chromatogr. A, 1167 (2007) 161. 36 . ... Snyder and J. J. Kirkland, Introduction to Modern Liquid Chromatography, 2nded., Wiley-Interscience, New York, 1979, pp. 34 36 .46. Reviewer Guidance. Validation of Chromatographic Methods, Center ... 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....
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Introduction to Modern Liquid Chromatography, Third Edition part 34 ppsx
... SAMPLES02468Time (min)024Time (min) 13 2456024Time (min)12 3 4+5612 3 45602Time (min)12+ 3 4+56(a)45% B, 35 °C2 ≤ k ≤ 13 Rs = 0.5(b)50% B, 35 °C1 ≤ k ≤ 7Rs = 0.6(c)45% ... naphthalenes. Sample substituents are: 1,1-NHCOCH 3 ; 2,2-SO2CH 3 ; 3, 2-OH; 4,1-COCH 3 ; 5,1-NO2;6,2-OCH 3 ; 7, -H (naphthalene); 8,1-SCH 3 ; 9, 1-Cl. Condi-tions: 150 × 4.6-mm C8column; ... run 2 is 63% MeOH/water; and run 3 is 39 %THF/water. While selectivity varies among runs 1 to 3 of Figure 6.24, two or morepeaks are poorly resolved in each separation.The next step is to carry...
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Introduction to Modern Liquid Chromatography, Third Edition part 49 ppsx
... min 30 oC; k* ≈ 5, Rs= 0.1(a)1 3 45+67810119202468101214Time (min)5-100% B in 30 min 30 oC; k* ≈ 15,Rs= 0.1(b)111 3 245+678910024681012Time (min)1245 76 3 891011100% ... Section 9.2.2.5: (1) to clean the column betweensample injections, (2) to shorten run time, or (3) to improve separation by adjustingselectivity for different parts of the chromatogram. Because ... exactlyanalogous to the similar use of Equation (2.24) for isocratic method development,as described here and in following Sections 9 .3. 3 to 9 .3. 6.The initial gradient conditions recommended in Table 9.3...
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Introduction to Modern Liquid Chromatography, Third Edition part 63 ppsx
... acid(N-Acetylneuraminate)(Sia)β-D-N-Acetylgalactosamine(GalNAc)β-D-N-Acetylglucosamine(GlcNAc)β-D-Galactose(Gal) 3 HON-C-CHN-C-CH 3 HOHH 3 -C-NOFigure 13. 5 Sugar residues commonly found in glycoproteins. 13. 3 SPECIAL ... Da); 49% acetonitrile-pH-2 .3 buffer. Note the column-packing pore-diameter at topof each figure; ‘‘ligand coverage’’ (x-axis) is proportional to surface area. Adapted from [10]. 13. 3.1.2 Particle ... size-exclusion chromatography [SEC]). 13. 3 SPECIAL CONSIDERATIONS FOR BIOMOLECULE HPLC 5 83 higher temperatures that would destroy a silica-based column. They are also stable to pressures of 4000 to 5000 psi....
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Introduction to Modern Liquid Chromatography, Third Edition part 66 ppsx
... denaturing conditions [74], for example, between 10 and 35 ◦CinFigure 13. 24.0 5 10 15 20 25 30 10°C25°C 32 °C 35 °C40°C50°CFigure 13. 24 Effect of temperature on the HIC elution behavior of ... SEPARATIONSribonucleaselysozymechymotrypsinogen A40 30 2010C4-C 3 OHC1C 3 C2Retentiontime (min)Figure 13. 22 Effect of HIC ligand length on protein retention (–C 3 OH, hydroxypropyl; C1,methyl; etc.). ... volatile, however, TFA is notoriousfor causing suppression in electrospray ionization [17]. 13. 4.4 .3 Application of HILIC to Peptides and ProteinsHILIC has been used successfully to separate peptides,...
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Introduction to Modern Liquid Chromatography, Third Edition part 75 ppsx
... CHARACTERISTICS 7 03 CHNHCOCH 3 NO2NO2NONHCCH2NHCCH2BrOO01 530 time (min)MeOH/AcOH/TEAMeOH/NH4AcOMeOH/TFA/NH4OHHOOHHNC(CH 3 ) 3 OHTerbutalinα= 1 .38 α= 1 .30 α= 1 .30 (a)(b)0 132 6time ... 701NHHNNHNHNHNHOOOOOOOOOOOONH2OHOHOHNHNH2OHClHOClOHHOOHHOH 3 CH 3 COHVancomycinABCONHNHNHClNHHOOHHOHHOOOHOOOHNOOHOOOHClOHOHNHOHOHOHOHHOH 3 CHOHOHOOONHONH 3 OOOHOHRABCDTeicoplaninOONHNHNHNHOOHOOOONHOHOOHCH 3 ONH2OOHOOHHHHHHOOOOHOHOOOOHOHOHOHOOHOHOHOHOHCH 3 ONH2HOH 3 COOOHOHOHOHABCDRistocetin A(a)(b)(c)OOCH 3 CH3H 3 CCH 3 Figure 14.19 ... SEPARATIONSRistocetin CSP Teicoplanin CSP Vancomycin CSPONHCH 3 OOOHNHNHOOCH 3 8.7512.45.9214.8Time (min)Time (min)Time(min)Time(min)Time(min)Time (min)10.57.885.6111.2 3. 73 5.144.704.91Figure...
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Introduction to Modern Liquid Chromatography, Third Edition part 84 ppsx
... asacetonitrile or acetone to a homogenized portion of a vegetable sample allows theextraction of pesticides into the solvent (step 2 of Fig. 16.7). Subsequent additionof salt (step 3) leads to ... modern alternative to Soxhlet extraction; it achieves analyte recoveries equivalent to those from Soxhletextraction, but with less solvent and in only 10 to 20 minutes. Sample weights of1 to ... the vessel to rise; extracted sample isremoved and transferred to a vial for further treatment(Section 16.8.2 .3) .Greatly increases speed of liquid solid extractionprocess; may be automated;extracted...
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Introduction to Modern Liquid Chromatography, Third Edition part 87 ppsx
... a result of injector rotor-seal leakage. Push -to- fill autosamplers(Section 3. 6.2.2, Fig. 3. 21) and most manual injectors make the connection betweenthe needle and the injector valve with a low-pressure ... cases the sleeve may need to be replaced. Consult the autosampler manual forspecific instructions for your autosampler.Needle-in-loop autosamplers (Section 3. 6.2 .3, Fig. 3. 22) require a high-pressureseal ... screwdriver or other metal tool, to avoid damaging the pump head. Donot use the piston to pry out the seal because the piston is likely to break. Asyou remove the seal, be sure to note how the seal...
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Introduction to Modern Liquid Chromatography, Third Edition part 88 ppsx
... 17.4 .3. 6 first. The following sections(17.4 .3. 1–17.4 .3. 5) cover each of these symptoms. It may be appropriate at thispoint to run the system reference test (Sections 3. 10.1 .3, 17.2.1) to determine ... split and distorted peaks inSection 17.4.5 .3) ; otherwise, it may be necessary to replace the column.Before putting the system back into service, consider if steps need to be taken to prevent ... (arrow).counter to automatically record the number of injection cycles, so as to allow theremaining rotor seal life to be estimated. When viewed in cross section, the groovesof the rotor shown in...
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