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Natural deep eutectic solvent-based microextraction for mercury speciation in water samples.
| Content Provider | Europe PMC |
|---|---|
| Author | Ripoll, Laura Rayos, Javier Aguirre, Miguel Ángel Vidal, Lorena Canals, Antonio |
| Abstract | A new natural deep eutectic solvent (NADES)-based analytical method for mercury speciation in water samples is presented. A NADES (i.e., decanoic acid:DL-menthol in a molar ratio of 1:2) is used as an environmentally friendly extractant for separation and preconcentration using dispersive liquid–liquid microextraction before LC-UV–Vis. Under optimal extraction conditions (i.e., NADES volume, 50 µL; sample pH, 12; volume of the complexing agent, 100 µL; extraction time, 3 min; centrifugation speed, 3000 rpm; and centrifugation time, 3 min), the limit of detection values were 0.9 µg L−1 for the organomercurial species and 3 µg L−1 for Hg2+, which had a slightly higher value. The relative standard deviation (RSD, n = 6) has been evaluated at two concentration levels (25 and 50 µg L−1) obtaining values for all the mercury complexes within the range of 6–12% and 8–12%, respectively. The trueness of the methodology has been evaluated using five real water samples from four different sources (i.e., tap, river, lake, and wastewater). The recovery tests have been performed in triplicate obtaining relative recoveries between 75 and 118%, with RSD (n = 3) between 1 and 19%, for all the mercury complexes in surface water samples. However, wastewater sample showed a significant matrix effect (recoveries ranged between 45 and 110%), probably due to the high amount of organic matter. Finally, the greenness of the method has also been evaluated by the analytical greenness metric for sample preparation (i.e., AGREEprep).Graphical AbstractSupplementary InformationThe online version contains supplementary material available at 10.1007/s00216-023-04610-0. |
| ISSN | 16182642 |
| Journal | Analytical and Bioanalytical Chemistry |
| Volume Number | 415 |
| PubMed Central reference number | PMC10328898 |
| Issue Number | 18 |
| PubMed reference number | 36872410 |
| e-ISSN | 16182650 |
| DOI | 10.1007/s00216-023-04610-0 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2023-03-06 |
| Publisher Place | Berlin/Heidelberg |
| Access Restriction | Open |
| Rights License | Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. © The Author(s) 2023 |
| Subject Keyword | Natural deep eutectic solvent Environmental samples Green analytical chemistry Microextraction Mercury speciation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Biochemistry |
