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- W1998736701 abstract "Abstract In this work, a high-capacity solid-phase extraction sorbent was developed for preconcentration of trace amounts of nickel ions prior to their determination by flame atomic absorption spectrometry (FAAS). The sorbent was prepared by immobilization of 1-(2-thiazolylazo)-2-naphthol (TAN) on nanometer-sized TiO2 coated with the ionic liquid, 1-hexadecyl-3-methylimidazolium bromide (C16mimBr). The chemical conditions for preparation of sorbent including pH and amounts of TAN and C16mimBr were optimized. Experimental conditions for preconcentration of Ni, elution conditions and the effect of interfering ions on the recovery of the analyte were also investigated. Under the optimum conditions, the calibration graph was linear in the range of 2.0–400 μg L−1 with a detection limit of 0.8 μg L−1. The adsorption capacity of the sorbent for Ni(II) was found to be 630 mg g−1. The preconcentration method coupled with FAAS was successfully applied to the determination of Ni(II) in various water and food samples." @default.
- W1998736701 created "2016-06-24" @default.
- W1998736701 creator A5017964553 @default.
- W1998736701 creator A5063705341 @default.
- W1998736701 date "2013-10-01" @default.
- W1998736701 modified "2023-09-26" @default.
- W1998736701 title "Modified ionic liquid-coated nanometer TiO2 as a new solid phase extraction sorbent for preconcentration of trace nickel" @default.
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- W1998736701 doi "https://doi.org/10.1016/j.colsurfa.2013.04.059" @default.
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