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- W2016335909 abstract "In this paper, a new method for the preconcentration and separation of cobalt was described. The methodology combines determined using an atomic absorption spectrometry (FAAS) with adsorption and desorption of cobalt on the modified bentonite using dithizone (Bent-dithizone). The operation conditions for the pre-concentration and separation of the cobalt, including pH, contact time, eluent condition and co-existing ions have been investigated. The result showed that the cobalt ion could be adsorbed by Bent-dithizone. The adsorption quantity was affected by the pH value of medium and shaking time. In the medium of pH 6.0, the adsorption capacity of Bent-dithizone to cobalt ion was 18.12 mg·g -1 when the shaking time was 15 min. The cobalt adsorbed on the adsorbent could be completely eluated and recovered using 10 g·L 1 EDTA solution. The enrichment factor was more than 100. The detection limit of cobalt was 0.46 ng·L 1 .The purposed method has been applied to the pre-concentration and separation of cobalt in the water sample, the recovery 97.94%-101.6%." @default.
- W2016335909 created "2016-06-24" @default.
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- W2016335909 date "2013-11-01" @default.
- W2016335909 modified "2023-09-24" @default.
- W2016335909 title "Preconcentration and Separation Capabilities of the Modified Bentonite Using Dithizone for Trace Cobalt in Water" @default.
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- W2016335909 doi "https://doi.org/10.4028/www.scientific.net/amr.826.203" @default.
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