Fabricated Synthesis Modify Multi Walled Carbon Nanotubes Carboxylate of Trace Co(II) in Water Samples by Dispersive Solid Phase Extraction

Document Type : Research Paper


A flame atomic absorption spectrophotometric (FAAS) method for the determination of
trace Co(II) after adsorption of synthesis modify Multi walled carbon nanotubes carboxylate has been
developed. Applying a facile and accessible sample preparation method is highly important before the
experimental analysis process. In the current study, a technique was introduced for preconcentration
and analysis of trace amounts of Co(II) ions in water samples. The important parameters in the analytical
procedure of Co(II) ions were optimized such as the pH of extraction, amount and type of elution solvent,
time of extraction, and the effect of another ion. Analytical parameters such as the concentration factor,
the limit of detection (LOD) of the technique, and relative standard deviation (RSD %) were achieved as
20, 9.0 μg L-1, and 2.7%, respectively.