A moderate arsenic acquaintance may lead to health problems, and thus measuring arsenic (As) and inorganic arsenic (iAs) exposure from smokeless tobacco products (SLTs) for different population groups is important....
Background:The magnetic nanocomposites are very important as a reusable sorbents for
the extraction of Cd(II) and other toxic metals from water samples.Methods:The Ag/MgO@Fe3O4 nanocomposite was synthesized by the coprecipitation method and
characterized by the XRD, EDX, SEM, UV-vis spectroscopy and FTIR. This nanocomposite was
used to extract Cd(II) from water samples prior to its quantitative analysis with FAAS. Different variables,
i.e. pH, temperature, amount of nanosorbent, adsorption/desorption and dilution were optimized.Results:The method was successfully applied to determine Cd(II) in real water samples with
excellent recoveries (98%). The present method has lower detection (0.29) and quantification limit
(0.97 ng mL-1).Conclusions:The Ag/MgO@Fe3O4 nanocomposite based magnetic extraction is a simple, fast, reproducible,
less expansive and efficient technique for the Cd(II) extraction in water samples. The developed
sorbent can be recycled and reused (20 times).
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