• N. Sathish Kumar
• K. M. Prasuna
• D. Lakshmi Kanthamma
• K. Seshaiah

A solid phase extraction method using a new sorbent, 2,2-dihydroxy-4,4’dimethoxy benzophenone SBA-15 for the determination of Co(II) at trace level in real water samples has been developed. The prepared material was characterized by FT-IR, SEM, TEM, XRD, N2 adsorption/desorption studies. Further, the effect of analytical parameters which affects the recovery of metal ions such as pH, dosage, eluent type, flow rates were studied. The preconcentration factor and limit of detection (LOD) was calculated and it was found to be 83 and 0.69 ng mL-1 respectively. The sorption capacity of the prepared sorbent found to as 62.25 mg g-1. The developed solid phase extraction method was applied in the determination of cobalt ions from water samples prior to determine by Flame Atomic Absorption Spectroscopy.

SBA-15, Cobalt, FAAS, preconcentration, SPE

"Preconcentration of trace levels of Co(II) from water samples using functionalized mesoporous silica", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.165-171, April-2019, Available :http://www.jetir.org/papers/JETIR1904T24.pdf

"Preconcentration of trace levels of Co(II) from water samples using functionalized mesoporous silica", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp165-171, April-2019, Available at : http://www.jetir.org/papers/JETIR1904T24.pdf