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Densimeter detector in gel permeation chromatography of copolymers

โœ Scribed by Elsdon, W. L. ;Goldwasser, J. M. ;Rudin, A.

Book ID
105334593
Publisher
John Wiley and Sons
Year
1983
Weight
26 KB
Volume
21
Category
Article
ISSN
0360-6376

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Densimeter detector in gel permeation ch
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## Abstract A commercially available densimeter with a vibrating stainless steel tube was used as a detector in the GPC analysis of styrene/methyl methacrylate copolymers under normal GPC operational conditions. The densimeter was thermostated to ยฑ0.001ยฐC and sample injection concentrations were 4.

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The use of a single detector in gel permeation chromatography (GPC) for samples of varying composition leads to erroneous conclusions. With certain simplifying assumptions, a gel permeation chromatograph equipped with properly selected dual detectors yields composition and molecular weight distribut