Sorption-Photometric Determination of 1-Naphthol with Polyurethane Foams
作者:
S.G. Dmitrienko,
E.N. Myshak,
A.V. Zhigulyev,
V.K. Runov,
Yu.A. Zolotov,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 14
页码: 2527-2540
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708001763
出版商: Taylor & Francis Group
关键词: 1-Naphthol;Polyurethane Foams;Sorption;Diffuse reflectance spectroscopy
数据来源: Taylor
摘要:
Two approaches to sorption-photometric determination of 1-naphthol in waters with application of polyurethane foams are offered. The first approach was based on sorption of a coloured 1-naphthol azoderivative, which was formed by the reaction with 4-nitrophenyldiazonium tetrafluoroborate (NFD). In the second variant, 1-naphthol is first sorbed by a polyurethane foam, and it is then transformed into a coloured azoderivative by sorbent treatment of a NFD solution. A coloured 1-naphthol azoderivative was determined immediately in the polyurethane foam using diffuse reflectance spectroscopy. Calibration graphs are linear in the interval of concentrations of 0.01 - 1 μg/ml. The analytical results indicated that a selective and sensitive analytical procedure could be easily applied to determination of 1-naphthol concentration in waters.
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