Shaker-assisted liquid-liquid microextraction of methylene blue using deep eutectic solvent followed by back-extraction and spectrophotometric determination
| Autor: | Ghasem Kazemi, Raheleh Ahmadi, Afsaneh Safavi, Amir M. Ramezani |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Hydrogen bond
Calibration curve 010401 analytical chemistry Extraction (chemistry) Hydrochloric acid 02 engineering and technology Decanoic acid 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Analytical Chemistry Deep eutectic solvent chemistry.chemical_compound chemistry Bromide 0210 nano-technology Spectroscopy Methylene blue Nuclear chemistry |
| Zdroj: | Microchemical Journal. 145:501-507 |
| ISSN: | 0026-265X |
| DOI: | 10.1016/j.microc.2018.11.005 |
| Popis: | This research describes the spectrophotometric determination of methylene blue (MB) after shaker-assisted liquid-liquid microextraction combined with back-extraction (SALLME-BE). A hydrophobic deep eutectic solvent (DES) was used for extraction of MB from alkaline solutions (0.5 M NaOH). Then, the extracted dye was back-extracted into a hydrochloric acid solution (2 M). Decanoic acid and methyltrioctylammonium bromide were used, respectively as hydrogen bond donor and hydrogen bond acceptor constituents of the hydrophobic DES. The calibration graph was linear in the range of 2–170 ng mL−1. The recovery analysis of wastewater and river water samples verified that this method is practical for environmental monitoring. |
| Databáze: | OpenAIRE |
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