Calibration and molecular weight calculations in GPC using a new practical method for dispersion correction—GPCV2
Article first published online: 9 MAR 2003
Copyright © 1977 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 21, Issue 7, pages 1911–1920, July 1977
How to Cite
Yau, W. W., Stoklosa, H. J. and Bly, D. D. (1977), Calibration and molecular weight calculations in GPC using a new practical method for dispersion correction—GPCV2. J. Appl. Polym. Sci., 21: 1911–1920. doi: 10.1002/app.1977.070210717
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 28 MAY 1976
- Manuscript Received: 9 APR 1976
The method of Balke, Hamielec, LeClair, and Pearce for GPC calibration and molecular weight computation is reviewed and evaluated. A new method, called GPCV2, is proposed which uses the single broad molecular weight distribution (MWD) standard for calibration developed by those workers, but which also incorporates the chromatographic dispersion σ to make the method more accurate in general use. Equations are presented for computing the relationship between actual MW and retention volume VR under the chromatographically broadened curves. This relationship is then compared to those obtained by using the Balke et al. method and the peak position method.