| 00:00:00 | Characterizing Polymeric Gelling Agents using Gel Permeation Chromatography.Are You Gelling? |
| 00:02:01 | OMNISEC |
| 00:02:18 | OMNISEC |
| 00:03:05 | Detector module – OMNISEC REVEAL |
| 00:06:02 | OMNISEC REVEAL technology |
| 00:06:23 | Refractive index |
| 00:06:57 | UV/Vis PDA |
| 00:07:55 | Light scattering |
| 00:08:25 | Light Scattering |
| 00:09:33 | Light scattering benefits |
| 00:09:49 | Viscometer |
| 00:10:05 | 3rd Generation Viscometer technology |
| 00:11:17 | Viscometer |
| 00:11:40 | OMNISEC Viscometer benefits |
| 00:12:17 | LMW Polymer Applications |
| 00:12:35 | PEO standards - RI and RALS 196 to 992,000 Da |
| 00:13:08 | PEO 196 Da by Triple Detection |
| 00:13:54 | Triple Chromatogram of Bisphenol A (MW = 228) |
| 00:14:19 | Triple Chromatogram of Bisphenol A Diglycidyl Ether (MW = 340) |
| 00:15:07 | Example Triple Chromatogram of Polypropylene Glycols |
| 00:15:38 | Summary of Molecular values of Polypropylene Glycols |
| 00:16:04 | Untitled |
| 00:17:06 | Triple Chromatogram of Polycaprolactone A (Mw = 1,800) |
| 00:17:31 | Triple Chromatogram of Polycaprolactone B (Mw = 1,600) |
| 00:17:42 | Example Triple Chromatogram of Silicone Oils (Mw = 44,000) |
| 00:18:40 | Summary |
| 00:19:05 | HMW/HIV Polymer Applications |
| 00:19:28 | Refractive index |
| 00:20:01 | Challenges of Polysaccharides and CellulosicsHMW and/or HIV |
| 00:20:45 | Carrageenan |
| 00:21:39 | Triple Chromatogram of Carrageenan-1 (Mw = 530,000, IV = 6.7) |
| 00:22:50 | Triple Chromatogram of Carrageenan-2 (Mw = 572,000, IV = 7.0 ) |
| 00:22:59 | Triple Chromatogram of Carrageenan-3 (Mw = 463,000, IV = 6.1) |
| 00:23:31 | Summary of Molecular values of Carrageenan Samples |
| 00:26:04 | M-H Overlay Plots of Pullulan vs Carrageenan Samples |
| 00:27:17 | Triple Chromatogram of PAM-197 (Mw = 4,300,000, IV = 8.4) |
| 00:27:56 | Triple Chromatogram of HEC-1 (Mw = 892,000, IV = 8.4) |
| 00:28:11 | Triple Chromatogram of HEC-2 (Mw = 1,200,000, IV = 11.6) |
| 00:28:17 | Triple Chromatogram of HEC-3 (Mw = 126,000, IV = 1.7) |
| 00:28:24 | Triple Chromatogram of HEC-4 (Mw = 202,000, IV = 3.2) |
| 00:28:29 | Triple Chromatogram of HEC-5 (Mw = 853,000, IV = 9.0) |
| 00:28:37 | Mark-Houwink Overlay Plots of HEC Samples 1-5 |
| 00:28:54 | Triple Chromatogram of CMC (Mw = 415,000, IV = 8.2) |
| 00:29:07 | Mark-Houwink Overlay Plots of HEC Samples 1-5 & CMC |
| 00:29:39 | Mark-Houwink Overlay Plots of HEC Samples 1-5 + CMC + P525K |
| 00:30:22 | Thank you for your attentionAny questions? |
| 00:34:20 | Contact Information |
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.
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.