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Comparison of methods for the analysis of chlorinated phenolics in effluents of pulp-bleaching operations

✍ Scribed by Elina B. Caramão; João L. F. Furtado; Maria C. R. Peralba; Tânia M. Pissolatto; Claudia A. Zini

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
339 KB
Volume
7
Category
Article
ISSN
1040-7685

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✦ Synopsis

Abstract

Two methods for analysis of chlorinated organic compounds found in pulp bleaching effluents have been compared in order to determine their efficiencies. Method A uses a solid phase extraction followed by derivatization with acetic anhydride. Method B consists in an in situ derivatization followed by liquid‐liquid extraction of the acetic esters. Both methods have proved to be efficient for analyzing chlorinated organic compounds and, with the exception of 3,4,5‐trichlorosyringol which appeared in a very low concentration when method A was employed, all compounds present in the standard mixture as well as in a pulp bleaching effluent sample have been detected. A detection limit of 0.4 ppb has been established. Quantitative determinations are being carried out and will be presented in a future article. © 1995 John Wiley & Sons, Inc.

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