Micó-Tormos A1, Simó-Alfonso EF, Ramis-Ramos G.
J Sep Sci. 2010 Jun;33(10):1398-404. doi: 10.1002/jssc.200900723.A column selection valve and a 6-port 2-position injection valve were combined to implement bi-dimensional LC in a system driven by a single pump. The system was applied to the separation of linear fatty alcohol ethoxylates with 12-18 carbon atoms in the hydrocarbon moiety, previous derivatization with diphenic anhydride. Separation on the first separation dimension (C(1)) was carried out with a propyl-diol column and an acetonitrile/aqueous ammonium acetate gradient. Read More