Analysis of Ethoxylated Nonylphenol Surfactants by High Performance Size Exclusion Chromatography (HPSEC)
- 1 March 1995
- journal article
- research article
- Published by Taylor & Francis in Journal of Liquid Chromatography
- Vol. 18 (6) , 1157-1171
- https://doi.org/10.1080/10826079508009282
Abstract
Since Size Exclusion Chromatography does not provide a complete oligomer resolution, it has not been generally considered as a choice method for analyzing ethoxylated surfactant. However, this situation might be changing. In effect, the use of new column technology together with non aqueous carrier solvent, and some operational optimization, can result in fairly good distribution data on the number of ethylene oxide groups per molecule (EON). It is shown that HPSEC provides an excellent EON average estimate over a wider and higher EON range than the the up-to-date HPLC techniques.Keywords
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