0
  1. Trang chủ >
  2. Khoa Học Tự Nhiên >
  3. Hóa học - Dầu khí >

Introduction to Modern Liquid Chromatography, Third Edition part 4 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 4 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 4 pdf

... Retention-ProblemSymptoms, 83617 .4. 4 Peak Area, 83817 .4. 4.1 Peak Area Too Large, 83917 .4. 4.2 Peak Area Too Small, 840 17 .4. 4.3 Peak Area Too Variable, 840 17 .4. 5 Other Problems Associated with theChromatogram, ... Column Leaks, 82817 .4. 1.6 Detector Leaks, 82817 .4. 2 Abnormal Pressure, 83017 .4. 2.1 Pressure Too High, 83117 .4. 2.2 Pressure Too Low, 83217 .4. 2.3 Pressure Too Variable, 83317 .4. 3 Variation in ... 83317 .4. 3.1 Flow-Rate Problems, 8 34 17 .4. 3.2 Column-Size Problems, 8 34 17 .4. 3.3 Mobile-Phase Problems, 8 34 17 .4. 3 .4 Stationary-Phase Problems, 83517 .4. 3.5 Temperature Problems, 83617 .4. 3.6...
  • 10
  • 488
  • 1
Introduction to Modern Liquid Chromatography, Third Edition part 95 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 95 pdf

... 47 0initial %B, 41 9 42 0initial separation, 43 7 44 2irregular samples, 41 4 41 5, 42 8 43 0vs. isocratic elution, 40 4 40 5, 40 9 41 3, 43 7 44 0large molecules, 46 4 46 5late elution, 42 1, 44 1linear gradients ... practice),815problems, 44 0 44 2, 47 0; see alsoTroubleshootingsteep gradients, 860–861program, 40 9range, 40 7 40 8, 41 0, 44 4 44 5regular samples, 41 4reproducibility, 44 9 45 1resolution, 43 4retention factor k∗, ... practices), 40 7 40 8method development, 40 6, 43 4 46 3method development outline, 43 5 43 6mixer, 112NPC, 46 6 46 7optimization, 44 2 44 6with DryLab, 48 3 48 5peak capacity, 45 1 45 6peak tailing, 40 7, 44 0polypeptides...
  • 17
  • 453
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 1 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 1 pdf

... Lloyd R. Introduction to modern liquid chromatography / Lloyd R. Snyder, Joseph J. Kirkland. – 3rded. / John W. Dolan.p. cm.Includes index.ISBN 978-0 -47 0-167 54- 0 (cloth)1. Liquid chromatography. ... 632.5 .4 Method Development, 652.5 .4. 1 Assessment of SampleComposition and SeparationGoals, 652.5 .4. 2 Sample Pretreatment, 662.5 .4. 3 Selection of ChromatographicMode, 662.5 .4. 4 Detector Selection, ... 993 .4. 2.2 High-Pressure Fittings, 1013 .4. 2.3 Specialty Fittings, 1033.5 Pumping Systems, 1 04 3.5.1 Reciprocating-Piston Pumps, 1 04 3.5.1.1 Dual-Piston Pumps, 1083.5.1.2 Accumulator-Piston...
  • 10
  • 629
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 16 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 16 pdf

... Accumulator-Piston PumpsAn alternative design for the dual-piston pump is the accumulator-piston, ortandem-piston design shown in Figure 3.13d. In this case, one piston feeds intothe other piston ... with either the dual-piston or accumulator-pistondesign.3.5.1.3 Active Check ValveA final refinement in design can be applied to both the dual-piston andaccumulator-piston pump designs. The ball-type ... the top piston (Fig. 3.13d) would pump at 1 mL/min. While the top pistondelivered solvent, the top (outlet) check valve would be open and the intermediatecheck valve (inlet for the top piston)...
  • 10
  • 468
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 17 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 17 pdf

... cycle time to just a few seconds.Three common autosampler designs are in common use:• pull -to- fill• push -to- fill• needle-in-loop3.6.2.1 Pull -to- Fill AutosamplersThe pull -to- fill autosampler ... 5 (<1) 30 (3)50 4. 6 3.0 5,500 40 (4) 80 (10) 565 (60)50 2.1 3.0 5,500 8 (1) 20 (2) 120 (80)50 1.0 3.0 5,500 2 (<1) 5 (<1) 25 (3)50 4. 6 1.8 9,200 30 (4) 65 (7) 44 0 (50)50 2.1 1.8 ... detector. One way to avoid this is to use aswitching valve to divert to waste the portion of the column effluent that containsmost of the protein—usually the early portion of the chromatogram...
  • 10
  • 326
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 19 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 19 pdf

... operator’smanual, replacement of the needle seal every six months will help to avoid problems.The autosampler is the component of the HPLC system that is most likely to leak; itis wise to inspect ... checked for leaks.REFERENCES 145 3. J. N. Brown, M. Hewins, J. H. M. van der Linden, and J. H. M Lynch, J. Chromatogr.,2 04 (1981) 115. 4. L. R. Snyder, J. Chromatogr. Sci., 21 (1983) 65.5. J. ... high-pressure shutoff limit for the pump is set near its maximum3.10 MAINTENANCE 141 Detector. HPLC detectors operate at pressures significantly lower than thecolumn, so leaks at the detector are less...
  • 10
  • 442
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 21 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 21 pdf

... value.160 DETECTIONTable 4. 4HPLC DetectorsSample-Specific(Sections 4. 4 4. 10)Bulk Property(Sections 4. 11 4. 13)Hyphenated(Sections 4. 14 4. 15)Reaction(Section 4. 16)UV-visible Refractive ... magneticresonanceRadioactivityConductivityChemiluminescentnitrogenChiral 4. 3 INTRODUCTION TO INDIVIDUAL DETECTORSThe remainder of this chapter (Sections 4. 4 4. 16) provides a discussion of mostHPLC detectors in use today. In Table 4. 4, detectors are grouped ... variable-wavelength (Section 4. 4.2) and diode-array (Section 4. 4.3) detec-tors select one or more wavelengths generated from a broad-spectrum lamp. 4. 4.1 Fixed-Wavelength DetectorsFigure 4. 9 is a generic...
  • 10
  • 271
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 31 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 31 pdf

... CHROMATOGRAPHY FOR NEUTRAL SAMPLES80% ACN(k = 0.3)Rs= 0.0(a)(b)(c)123 4 123 4 0.2 0 .4 0.6 0.8Time (min)t01 4 50% ACNRs= 1.0(1.9 ≤ k ≤ 4. 2) 40 % ACNRs= 1 .4 (4 ≤ k ≤ 10)0 4 Time ... into the stationary phase, but is retained at theinterface between the stationary and mobile phases. Partition (Fig. 6.4c) considersthe stationary phase to be similar to a liquid phase, into ... (adsorptionor partition?)2 64 REVERSED-PHASE CHROMATOGRAPHY FOR NEUTRAL SAMPLES02Time (min)12+3 4 567850% ACN2 ≤ k ≤ 6Rs= 0.0(a) 45 % ACN3 ≤ k ≤ 6Rs= 1.5(c)0 24 Time(min)123 4 5678 4 40%...
  • 10
  • 191
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 52 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 52 pdf

... Chromatogr., 803 (1998) 1. 43 . A. P. Schellinger, D. R. Stoll, and P. W. Carr, J. Chromatogr. A, 10 64 (2005) 143 . 44 . A. P. Schellinger, D. R. Stoll, and P. W. Carr, J. Chromatogr. A, 1192 (2008) 41 . 45 . ... we will Introduction to Modern Liquid Chromatography, Third Edition, by Lloyd R. Snyder,Joseph J. Kirkland, and John W. DolanCopyright © 2010 John Wiley & Sons, Inc. 47 5REFERENCES 47 366. ... J. Chromatogr. Sci., 39 (2001) 48 7. 4. S. R. Needham and T. Wehr, LCGC Europe, 14 (2001) 244 .5. J.Ayrton,G.J.Dear,W.J.Leavens,D.N.Mallet,andR.S.Plumb,J. Chromatogr. B,709 (1998) 243 .6. L....
  • 10
  • 378
  • 0
Introduction to Modern Liquid Chromatography, Third Edition part 65 pdf

Introduction to Modern Liquid Chromatography, Third Edition part 65 pdf

... 8.8–10.8 6.8–7.9Arginyl 12.5 ≥12Histidyl 6.0 6 .4 7 .4 Lysyl 10.8 5.9–10 .4 Terminal carboxyl 1.8–2.6 3.5 4. 3Aspartyl 3.9 4. 0–7.3Glutamyl 4. 3 4. 0–7.3Source: Reprinted from [37] with permission ... ion-exchange chromatography.13 .4. 2.3 ChromatofocusingChromatofocusing is a specialized form of IEC in which proteins are eluted fromthe column with a pH gradient [44 49 ]. Chromatofocusing is unique ... 13 .4 SEPARATION OF PEPTIDES AND PROTEINS 605OHOHOHCa+))Ca+))PO 4 =PO 4 =PO 4 =((+H2N((+H2N+H2N+H2N(a)(b)COO−COO−COO−))COO−))((PO 4 =PO 4 =((PO 4 =+Ca+CaHOHOHOProteinProteinCHTCHTC-sitesP-sitesFigure...
  • 10
  • 361
  • 0

Xem thêm

Từ khóa: introduction to network simulator ns2 2nd edition pdfintroduction to network simulator ns2 2nd editionintroduction to network simulator ns2 2nd edition free downloadenglish phonetics and phonology a practical course third edition peter roach pdfan introduction to object oriented programming with visual basic net pdfintroduction to oracle9i pl sql student guide volume 1 pdfBáo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018Nghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoạiMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngTìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinThơ nôm tứ tuyệt trào phúng hồ xuân hươngKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtchuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ