首页|Mesoporous poly(amino acids)ionic liquid with excellent extraction performance for sunset yellow
Mesoporous poly(amino acids)ionic liquid with excellent extraction performance for sunset yellow
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NSTL
The poly amino acid ionic liquid {1-ethyl-3-benzyltriethylammonium alanine P[ETA][Ala]} was synthesized and characterized with Fourier Transform Infrared Spectroscopy(FTIR),Carbon Nuclear Magnetic Spectra(~(13)C NMR),Scanning Electron Microscope(SEM),X-ray(XRD),Brumaire-Emmett-Teller(BET).SEM and BET confirmed that P[ETA][Ala] was a porous material.Under optimized conditions,the linear range of sunset Yellow(SY)was 0.02-20.00 μg mL~(-1),the limit of detection(LOD)was 0.01 μg mL~(-1)and the enrichment factor was 11.0(pre-extraction solution volume/elution volume).The isothermal adsorption and kinetic models were investigated to explain the extraction(adsorption)mechanism of SY on P[ETA][Ala],This proposed method was successfully applied the analysis of beverage samples with recoveries of 92.0-110.0% and relative standard deviations of 1.1-5.0%.
NSTL
