Add time:09/06/2019         Source:sciencedirect.com

Using a non-extractable layer of polyethylene glycol succinate (PEGS) on Chromosorb P, additionally coated with a PEGS stationary phase in a short column, a rapid and successful analysis of 2-Chloro-4-nitroaniline (cas 121-87-9) was achieved. Chromosorb P AW (0.015% Fe) after coating with PEGS has undergone thermal treatment at 300° C in a flow of an inert gas. After this treatment the support was exhaustively extracted and used as a deactivated support with the aid of a non-extractable PEGS layer. The PEGS column quality and resolution ability were tested with various model mixtures: Wright's mixture, low- and high-molecular-weight alcohols, and synthetic fatty acids, Chromatographic parameters such as peak area, resolution criterion and asymmetry coefficient of the analyzed nitroanilines were evaluated statistically and their reproducibility was very good.

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