Analysis of aminobenzoic acids in waste water from a former ammunition plant with HPLC and combined diode array and fluorescence detection |
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| Authors: | T C Schmidt M Petersmann L Kaminski E von Löw G Stork |
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| Institution: | (1) Philipps-University, Department of Chemistry, Hans-Meerwein-Strasse, D-35032 Marburg, Germany, DE;(2) Environmental Hygiene and Immunology, Medical Centre of Hygiene, Pilgrimstein 2, D-35037 Marburg, Germany, DE |
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| Abstract: | Aminobenzoic acids are of major interest in clinical analysis, but their determination in environmental samples has been
rarely done. Therefore a method for the determination of 10 aminobenzoic acids in water has been developed, using high-performance
liquid chromatography with combined diode array and fluorescence detection. A separation of the analytes has been achieved
with a buffer pH 3/methanol gradient. The general elution order has been m-substituted<p-subst.<o-subst. aminobenzoic acids.
UV and fluorescence data are presented. In a highly polluted water sample of the former ammunition plant Stadtallendorf/Hessen,
4-aminobenzoic acid, 2-amino- benzoic acid and 2-amino-4-nitrobenzoic acid have been detected. After passing a charcoal filter,
only the concentration of 4-aminobenzoic acid in a sample from the same site has been above the detection limit. Besides the
ten analytes investigated, several unknown compounds have been present in the samples.
Received: 15 January 1996/Accepted 20 February 1996 |
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