PRECONCENTRATION OF PHENOLS ON POLYURETHANE FOAM AND THEIR DETERMINATION USING SPECTROPHOTOMETRY AND HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

Authors
MYSHAK EN DMITRIENKO SG SHAPOVALOVA EN ZHIGULEV AV SHPIGUN OA ZOLOTOV YA
Citation
En. Myshak et al., PRECONCENTRATION OF PHENOLS ON POLYURETHANE FOAM AND THEIR DETERMINATION USING SPECTROPHOTOMETRY AND HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY, Journal of analytical chemistry, 52(10), 1997, pp. 939-943
Citations number
15
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of analytical chemistry → ACNP
ISSN journal
10619348
Volume
52
Issue
10
Year of publication
1997
Pages
939 - 943
Database
ISI
SICI code
1061-9348(1997)52:10<939:POPOPF>2.0.ZU;2-G
Abstract
It is demonstrated that the preconcentration of phenol, 2-cresol, and 4-cresol can be performed by adsorption on polyurethane foam as ion pa irs of 4-nitrophenylazophenolates with the cetyltrimethylammonium cati on. The dependence of the recovery on the equilibration time, the samp le volume, and the adsorbent mass was revealed. The adsorption of phen ols as azo derivatives depends on their concentration. A test procedur e for determining total phenols was developed. The test form was used for the determination of individual phenols by high-performance liquid chromatography with electrochemical detection.