TY  - JOUR
Y1  - 2023///
TI  - Ionic liquid-based dispersive liquidâ??liquid microextraction of succinic acid from aqueous streams: COSMO-RS screening and experimental verification
N1  - cited By 2
AV  - none
SN  - 09593330
PB  - Taylor and Francis Ltd.
JF  - Environmental Technology (United Kingdom)
A1  - Khan, H.W.
A1  - Zailan, A.A.
A1  - Bhaskar Reddy, A.V.
A1  - Goto, M.
A1  - Moniruzzaman, M.
KW  - Acetonitrile; Hydrogen bonds; Organic solvents; Positive ions; Solvent extraction
KW  -  Conductor-like screening model for real solvents; Dispersive liquid-liquid microextraction; Experimental verification; Extractants; Microextraction; Quaternary ammonium; Reaction parameters; Removal efficiencies; Succinic acids; Tetramethyl ammonium hydroxide
KW  -  Ionic liquids
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85165501640&doi=10.1080%2f09593330.2023.2234669&partnerID=40&md5=d49db3e6cfdfdeda59ca349281062a82
ID  - scholars19193
N2  - In the present investigation, a total of 108 combinations of ionic liquids (ILs) were screened using the conductor-like screening model for real solvents (COSMO-RS) with the aid of six cations and eighteen anions for the extraction of succinic acid (SA) from aqueous streams through dispersive liquidâ??liquid microextraction (DLLME). Using the screened ILs, an ionic liquid-based DLLME (IL-DLLME) was developed to extract SA and the role of different reaction parameters in the effectiveness of IL-DLLME approach was investigated. COSMO-RS results suggested that, quaternary ammonium and choline cations form effective IL combinations with OH¯, F¯, and SO42¯ anions due to hydrogen bonding. In view of these results, one of the screened ILs, tetramethylammonium hydroxide TMAmOH was chosen as the extractant in IL-DLLME process and acetonitrile was adopted as the dispersive solvent. The highest SA removal efficiency of 97.8% was achieved using 25 μL of IL TMAmOH as a carrier and 500 μL of acetonitrile as dispersive solvent. The highest amount of SA was extracted with a stir time of 20 min at 300 rpm, followed by centrifugation for 5 min at 4500 rpm. Overall, the findings showed that IL-DLLME is efficient in extracting succinic acid from aqueous environments while adhering to the first-order kinetics. © 2023 Informa UK Limited, trading as Taylor & Francis Group.
ER  -