NDLI: Occurrence and behaviour of 4-nonylphenol in river water of Germany

Content Provider	Royal Society of Chemistry (RSC)
Author	Fries, Elke Püttmann, Wilhelm
Copyright Year	2003
Abstract	An analytical method composed of solid-phase-extraction (SPE) followed by gas chromatography-mass spectrometry (GC-MS) has been developed to investigate the occurrence and the behaviour of the endocrine disruptor 4-nonylphenol (4-NP) in river water of Germany. 16 Para-isomers of the complex mixture of 4-NP isomers have been resolved in the SPE-extracts of river water samples. The mass spectra indicate the presence of four distinct groups of isomers. The different groups are characterised by different base peaks of the mass spectra dependent on the substitution of the alpha-carbon on the alkyl chain. The different isomers show (i) alpha-methyl, alpha-ethyl (base peak 149), (ii) alpha-dimethyl (base peak 135), (iii) alpha-methyl, alpha-propyl, alpha-butyl (base peak 121) and (iv) alpha-methyl, alpha-propyl, alpha-butyl (base peak 107) configuration of the alkyl chain. The recovery of the unbranched compound 4-n-NP was ≥90%. Detection limit and determination limit of the whole analytical procedure were 6 ng L−1 and 25 ng L−1, respectively with a relative standard deviation of 11.7%. The concentration of the sum of the 4-NP isomers in all samples of river water ranged from 28 ng L−1 (Elbe River) to 1220 ng L−1(Oder River). In a period of a higher river water level, a higher amount of 4-NP was detected in the Oder River than in a period of a lower water level. Therefore dilution was not the determinant factor of the 4-NP concentration in river water. The diurnal dynamics of the sewage treatment works (STWs) have to be considered as an influencing factor for the presence of 4-NP in river water.
Starting Page	598
Ending Page	603
Page Count	6
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	5
Issue Number	4
Journal	Journal of Environmental Monitoring
DOI	10.1039/b302229n
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Germany Elbe River Oder River Gas chromatography\u2013mass spectrometry Endocrine disruptor Alkane Detection limit Coefficient of variation Elbe Oder Determinant Sewage treatment
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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