Dispersive Solid Phase Extraction of trace Cu(II) in water samples by synthesis modify Multi walled carbon nanotubes carboxylate

International Journal of Bio-Inorganic Hybrid Nanomaterials

دوره 10، شماره 4، دی 2021، صفحه 223-232   

نوع مقاله: Research Paper

چکیده

A flame atomic absorption spectrophotometric (FAAS) method for the determination of trace Cu(II) after adsorption of synthesis modify Multi walled carbon nanotubes carboxylate has been developed. The as synthesis modify Multi walled carbon nanotubes carboxylate have a good capacity to retain Cu2+, but the raw and purified as synthesis modify Multi walled carbon nanotubes carboxylate are found not to adsorb Cu2+ ions. flame atomic absorption spectrometry (FAAS) was utilized for determination of Cu2+. The effects of solution pH solution, elution conditions on pre-concentration of trace Cu2+ were studied and the effect of interfering ions was also investigated. Preconcentration factor was 100 .The method was successfully applied to the recovery of Cu2+ in different type of water samples. synthesis modify Multi walled carbon nanotubes carboxylate in this studyis full of potential to use as an excellent adsorbent in the extraction method like solid phase extraction (SPE) and solid phase micro extraction (SPME). 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 2.9%, respectively.

کلیدواژه‌ها

Cu(II) ion؛ Flame atomic absorption spectrometry؛ Heavy metal ions؛ Modify Multi walled carbon nanotubes carboxylate؛ Preconcentration of heavy metals؛ SPE