Determination of 5-fluorouracil in hospital effluents |
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Authors: | Susanne?N?Mahnik Blanka?Rizovski Maria?Fuerhacker Email author" target="_blank">Robert?M?MaderEmail author |
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Institution: | (1) Department of Medicine I, Clinical Division of Oncology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria;(2) Department of Water–Atmosphere–Environment, Institute of Sanitary Engineering and Water Pollution Control, BOKU, University of Natural Resources and Applied Life Sciences, 1190 Vienna, Austria |
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Abstract: | Cytostatic anticancer drugs are an increasingly important issue in the environmental debate, mainly due to the lack of knowledge about the fate of these toxic substances. Over the last decades, 5-fluorouracil (5-FU) has been one of the most frequently used antineoplastic agents and may, therefore, be regarded as one of the pilot substances for environmental contamination. As a prerequisite for these investigations, a method for the determination of 5-FU in hospital effluents has been developed. Waste water samples were enriched by solid-phase extraction on ENV+ columns (concentration factor 500) and analysed by capillary electrophoresis using a buffer containing 80% 160 mM sodium borate buffer (pH 9.5) and 20% acetonitrile (v/v). This method is applicable within the range 5–500 g 5-FU L–1. The standard curve (correlation coefficient >0.99) was linear with recovery rates from 80 to 96% and an accuracy from 9.0 to 20% (intra-assay standard deviation 0.7–8.9%; inter-assay standard deviation 2.2–9.5%). Based on the consumption of 5-FU in oncologic departments and the detection limit of 1.7 g L–1, this method covers the range necessary to evaluate 5-FU in hospital effluents. The applicability of the method was proven by chemical analysis of real hospital waste water samples. Obtained over a time period of 1 month (range 20–122 g 5-FU L–1), the results were similar to those calculated by an input–output model. The presented method provides an analytical tool necessary to face the monitoring of environmental contamination problems.Abbreviations 5-FU
5-Fluorouracil - OECD
Organization for economic cooperation and development |
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Keywords: | 5-Fluorouracil Capillary electrophoresis Hospital effluents |
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