Economically feasible strategy for confirmation of pharmaceuticals in hospital effluent using screening analysis
| Autor: | Carla Sirtori, Débora Salmoria Araújo, Renata M. Cardoso, Raquel W. Becker, Alexsandro Dallegrave |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
education.field_of_study
General Chemical Engineering 010401 analytical chemistry Population General Engineering 010501 environmental sciences Contamination Wastewater Pulp and paper industry 01 natural sciences Hospitals 0104 chemical sciences Analytical Chemistry Screening analysis Pharmaceutical Preparations Environmental science Solid phase extraction education Effluent Water Pollutants Chemical 0105 earth and related environmental sciences Potential toxicity Environmental Monitoring |
| Zdroj: | Analytical methods : advancing methods and applications. 12(38) |
| ISSN: | 1759-9679 |
| Popis: | The contamination of aquatic systems by pharmaceuticals has received considerable attention in recent decades, because these substances are increasingly detected in the environment. This is due to the abundant use of pharmaceuticals by the population and, consequently, their constant introduction into aquatic systems through domestic, industrial, and hospital wastewaters. Hospital effluents have highly complex compositions and present potential toxicity towards the environment. In this work, a screening methodology was developed to evaluate the occurrence of pharmaceutical products in hospital wastewater, using a viable, easy, and economical strategy employing commercial pharmaceutical compounds for screening analysis. Six samplings of hospital wastewater were carried out monthly (from winter until summer). The samples were filtered and pre-concentrated/extracted using solid phase extraction (SPE). The pharmaceuticals screening procedure required the construction of two databases, one for each ionization mode (positive and negative), which contained information that allowed the identification of the presence of these pharmaceuticals in the studied samples. Commercial pharmaceutical compounds were used as analytical standards. Based on this strategy and, using liquid chromatography coupled to high resolution mass spectrometry, it was possible to screen 110 pharmaceuticals and, from these, to confirm the presence of 38 pharmaceuticals in analyzed samples. These results indicate the analytes that should be taken into account in the further development of quantitative methods for pharmaceutical analysis. |
| Databáze: | OpenAIRE |
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