Abstract
Qualitative and quantitative analytical methods are presented for the analysis of ortho- and para- nonylphenol isomers. Thin layer chromato-graphy (TLC) using silica-gel can be applied successfully for separations of two-ortho isomers and para-isomer.
Under the conditions used to give good separations on TLC, two ortho-isomers and para-isomer were fractionated quantitatively by elution chromatography. Succeedingly, the fractionated portion of ortho-isomers was further separated into olefine polymers, monoalkylbenzenes and two ortho-isomers by elution chromatography. The authors consider that the differences in the two ortho-isomers are caused by differing character of alkyl groups on the molecules.
