A simple method for simultaneous determination of nine triazines in drinking water |
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| Authors: | Elisa Beceiro-González Maria J. González-Castro Rebeca Pouso-Blanco Soledad Muniategui-Lorenzo Purificación López-Mahía Dario Prada-Rodríguez |
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| Affiliation: | 1. Grupo QANAP, Department of Analytical Chemistry, Faculty of Science, Universidade da Coru?a, Campus A Coru?a, A Coru?a, Spainelisa@udc.es;3. Grupo QANAP, Department of Analytical Chemistry, Faculty of Science, Universidade da Coru?a, Campus A Coru?a, A Coru?a, Spain |
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| Abstract: | A simple, effective, and economic method for determination of nine triazines (ametryn, atrazine, cyanazine, prometryn, propazine, simazine, simetryn, terbuthylazine, and terbutryn) in drinking water based on solid-phase extraction (SPE) followed by high-performance liquid chromatography-diode array detection (HPLC-DAD) was developed. A specialized solid phase (Oasis HLB) was used, and the parameters that may affect the efficiency of SPE were optimized. The limits of detection (ranged from 0.010 to 0.023 µg L?1) were satisfactory and allow the determination of triazines at the levels required by European Union legislation. Repeatability (2.4–7.6%) and intermediate precision (0.9–11.0%) calculated at 0.1 µg L?1 (legislation level) were adequate. The accuracy calculated as the average recovery of spiked tap and mineral waters was higher than 86% for all compounds. The developed method also could be used for undergraduate laboratory experiments because it acquaints students with solution preparation, solid phase extraction procedure, and HPLC-DAD technique. |
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| Keywords: | water analysis triazines SPE HPLC-DAD |
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