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High resolution 1 H and 13 C NMR were used to characterise complex mixtures of industrial polyoxyethylated surfactants of the C i E j series. A progressive methodology was applied to analyse mixtures of monodisperse surfactants of increasing complexity, with regard to both the alkyl chain (i=8–16) and the polyoxyethylene moiety (j=1–8). The techniques were then successfully...
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