Quaternary surfactants are used as microbiocides and preservatives in a wide variety of applications, from industrial to pharmaceutical. Ordinary HPLC columns don't cleanly resolve these compounds, producing peaks with severe tailing. The Acclaim Surfactant column resolves this class of surfactants well, with good peak shapes. Suppressed conductivity can detect as little as 15 ng of surfactant, even for substances with weak UV absorbtion.