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- W2507459093 abstract "A selective matrix separation/enrichment method, utilizing a simple batch procedure with nickel/nickel boride (Ni/NixB) nanoparticles was proposed for the determination of inorganic mercury(II), Hg2+ and methyl mercury(I), CH3Hg+ in waters prior to cold vapor-atomic fluorescence spectrometry (CV-AFS). The Ni/NixB nanoparticles, were synthesized by the chemical reduction of Ni(II) to Ni/NixB. The novel adsorbent was selective to Hg2+ and CH3Hg+ species between pH values of 4–10. Both of the mercury species were recovered from the adsorbent using 1.0 mol L–1 hot HNO3 with high efficiency. It was observed that the adsorbent selectively removed Hg2+ and CH3Hg+ from the bulk solution in the presence of several competitor ions (As3+, Sb3+, Pb3+, Zn3+, Cu3+, Cd3+ and Fe3+) with ≥96% adsorption. The limit of detection (3σ above blank) was found to be 1.8 ng L–1 with a preconcentration factor of 20. The validation of the method was tested through spike recovery experiments with several water samples (tap and seawater) at μg L–1 concentration levels, and all recovery values were found to vary between 95 and 105%." @default.
- W2507459093 created "2016-09-16" @default.
- W2507459093 creator A5006620173 @default.
- W2507459093 creator A5069441798 @default.
- W2507459093 date "2016-08-01" @default.
- W2507459093 modified "2023-10-03" @default.
- W2507459093 title "Use of Ni/NixB Nanoparticles as a Novel Adsorbent for the Preconcentration of Mercury Species prior to Cold Vapor-Atomic Fluorescence Spectrometric Determination" @default.
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- W2507459093 doi "https://doi.org/10.2116/analsci.32.867" @default.
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