_:n9b6548d9c28f46368329e3c9675c908fxb1
<http://schema.org/text>
"<p style=\"margin:0;\">I want to analyze non-ionic surfactant (fatty alcohol ethoxylate and tallowamine ethoxylate ) in a formulation. I tried C18 column with 80:20&nbsp; Methanol: water combination but I am not getting proper peaks. Due to branched alchol I am getting humps in the chromatogram. Can anyone suggest how to go forward with RI detector as we do not have ELSD detector.</p><div style=\"clear:both;\"></div>"
<https://community.agilent.com/applications/research/f/forum/548/has-anyone-done-surfactant-analysis-using-hplc--ri/14581>