Reliable methods for determination of triazine herbicides and their degradation products in seawater and marine sediments using liquid chromatography-tandem mass spectrometry
| Autor: | Rocío Uzal-Varela, E. Beceiro-González, N. Rodríguez-González, Soledad Muniategui-Lorenzo, M. J. González-Castro |
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| Rok vydání: | 2016 |
| Předmět: |
Geologic Sediments
Health Toxicology and Mutagenesis Simazine 010501 environmental sciences Mass spectrometry 01 natural sciences Matrix (chemical analysis) chemistry.chemical_compound Liquid chromatography–mass spectrometry Tandem Mass Spectrometry Environmental Chemistry Seawater Solid phase extraction 0105 earth and related environmental sciences Chromatography Herbicides Triazines 010401 analytical chemistry Extraction (chemistry) Solid Phase Extraction Reproducibility of Results General Medicine Terbuthylazine Pollution 0104 chemical sciences chemistry Environmental chemistry Water Pollutants Chemical Chromatography Liquid |
| Zdroj: | Environmental science and pollution research international. 24(8) |
| ISSN: | 1614-7499 |
| Popis: | Triazines and their degradation products are transported to the aquatic environment, and once there, the probability to reach the marine environment is very high. In this paper, solid phase extraction (SPE) and extraction by matrix solid phase dispersion (MSPD) to analyse nine triazines (ametryn, atrazine, cyanazine, prometryn, propazine, simazine, simetryn, terbuthylazine and terbutryn) and eight degradation products (desethylatrazine, desethyldesisopropylatrazine, desethyl-2-hydroxyatrazine, desethylterbuthylazine, desisopropylatrazine, desisopropyl-2-hydroxyatrazine, 2-hydroxyatrazine and 2-hidroxyterbuthylazine) in seawater and marine sediments samples were used. The analysis was carried out using liquid chromatography with tandem mass spectrometry (LC-ESI-MS/MS). The methods were optimized and validated to achieve a selective and sensitive determination of the analytes from different sample, regardless of its complexity. Under the optimum conditions, the proposed methods provided adequate limits of quantification (0.05–0.45 μg L−1 and 0.23–4.26 μg kg−1 in seawater and marine sediments, respectively). Intra- and inter-day relative standard deviation were below 1.41% for all compounds. Recoveries were evaluated, and acceptable values that ranged from 87.5–99.4 and 60.9–99.7% for the seawater and sediment samples, respectively, were obtained. The proposed methods were applied to the analysis of the target compounds in seawater samples and marine sediments from a coastal area of Galicia (NW of Spain). |
| Databáze: | OpenAIRE |
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