Date recorded: March 10 2016

Duration: 34 minutes 37 seconds

Gel Permeation Chromatography (GPC), is a very popular analytical tool for polymer characterization. Key industries where GPC is used include the food and drink, paper, and personal care industries, among others, where polysaccharides such as cellulose derivatives, pectins and gums are widely used.

As a tool, GPC can help characterize these molecules for better grading, blending and performance/quality control, however, these products can present challenges to developing reliable GPC methods.

This webinar will provide a brief review of our latest multi-detector GPC system, OMNISEC, and discuss how its unrivalled performance can help in measurements of these samples. Particular focus will be given to OMNISEC’s sensitivity and how it allows measurements of highly viscous samples such as those above by using lower column loadings to avoid viscous fingering and other undesirable chromatography problems.

In conclusion, the performance of OMNISEC opens up these application areas in ways which was not previously possible with other advanced GPC systems, bringing absolute molecular weight measurements to these important markets.
Table of contents
1. Characterizing Polymeric Gelling Agents using Gel Permeation Chromatography.Are You Gelling?
02:01
2. OMNISEC
00:17
3. OMNISEC
00:47
4. Detector module – OMNISEC REVEAL
02:57
5. OMNISEC REVEAL technology
00:21
6. Refractive index
00:34
7. UV/Vis PDA
00:58
8. Light scattering
00:30
9. Light Scattering
01:08
10. Light scattering benefits
00:16
11. Viscometer
00:16
12. 3rd Generation Viscometer technology
01:12
13. Viscometer
00:23
14. OMNISEC Viscometer benefits
00:37
15. LMW Polymer Applications
00:18
16. PEO standards - RI and RALS 196 to 992,000 Da
00:33
17. PEO 196 Da by Triple Detection
00:46
18. Triple Chromatogram of Bisphenol A (MW = 228)
00:25
19. Triple Chromatogram of Bisphenol A Diglycidyl Ether (MW = 340)
00:48
20. Example Triple Chromatogram of Polypropylene Glycols
00:31
21. Summary of Molecular values of Polypropylene Glycols
00:26
22. Untitled
01:02
23. Triple Chromatogram of Polycaprolactone A (Mw = 1,800)
00:25
24. Triple Chromatogram of Polycaprolactone B (Mw = 1,600)
00:11
25. Example Triple Chromatogram of Silicone Oils (Mw = 44,000)
00:58
26. Summary
00:25
27. HMW/HIV Polymer Applications
00:23
28. Refractive index
00:33
29. Challenges of Polysaccharides and CellulosicsHMW and/or HIV
00:44
30. Carrageenan
00:54
31. Triple Chromatogram of Carrageenan-1 (Mw = 530,000, IV = 6.7)
01:11
32. Triple Chromatogram of Carrageenan-2 (Mw = 572,000, IV = 7.0 )
00:09
33. Triple Chromatogram of Carrageenan-3 (Mw = 463,000, IV = 6.1)
00:32
34. Summary of Molecular values of Carrageenan Samples
02:33
35. M-H Overlay Plots of Pullulan vs Carrageenan Samples
01:13
36. Triple Chromatogram of PAM-197 (Mw = 4,300,000, IV = 8.4)
00:39
37. Triple Chromatogram of HEC-1 (Mw = 892,000, IV = 8.4)
00:15
38. Triple Chromatogram of HEC-2 (Mw = 1,200,000, IV = 11.6)
00:06
39. Triple Chromatogram of HEC-3 (Mw = 126,000, IV = 1.7)
00:07
40. Triple Chromatogram of HEC-4 (Mw = 202,000, IV = 3.2)
00:05
41. Triple Chromatogram of HEC-5 (Mw = 853,000, IV = 9.0)
00:08
42. Mark-Houwink Overlay Plots of HEC Samples 1-5
00:17
43. Triple Chromatogram of CMC (Mw = 415,000, IV = 8.2)
00:13
44. Mark-Houwink Overlay Plots of HEC Samples 1-5 & CMC
00:32
45. Mark-Houwink Overlay Plots of HEC Samples 1-5 + CMC + P525K
00:43
46. Thank you for your attentionAny questions?
03:58
47. Contact Information
00:17