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Separation of phenols as neutral compounds by micellar electrokinetic capillary chromatography

Separation of phenols as neutral solutes by micellar electrokinetic capillary chromatography provides a quantitative linear dynamic range of 6000–13 000. Since the compounds are injected and separated as neutral solutes, the dispersive processes of anti-stacking and electrodispersion are eliminated....

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Bibliographic Details
Published in:Journal of Chromatography A 2003-10, Vol.1014 (1), p.179-187
Main Authors: Sayler, Kari, Weinberger, Robert
Format: Article
Language:English
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Summary:Separation of phenols as neutral solutes by micellar electrokinetic capillary chromatography provides a quantitative linear dynamic range of 6000–13 000. Since the compounds are injected and separated as neutral solutes, the dispersive processes of anti-stacking and electrodispersion are eliminated. Optimized conditions allow for sub-ppm quantitation of trace impurities in the presence of the major components at various stages of the production of high purity phenols. The background electrolyte consists of 100 m M sodium dodecyl sulfate in 50 m M phosphate buffer pH 7. The method is precise, reliable, and the limits of detection are superior compared to HPLC by a factor of 20.
ISSN:0021-9673
DOI:10.1016/S0021-9673(03)00576-4