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Graphene for Preconcentration of Trace Amounts of Ni in Water and Paraffin-embedded Tissues from Liver Loggerhead Turtles Specimens Prior to Flame Atomic Absorption Spectrometry
2014
Oriental Journal of Chemistry
A new sensitive and simple method was developed for the preconcentration of trace amounts of Ni using 1-(2-pyridylazo)-2-naphthol (PAN) as chelating reagent prior to its determination by ûame atomic absorption spectrometry. The proposed method is based on the uti-lization of a column packed with graphene as sorbent. Several effective parameters on the extraction and complex formation were selected and optimized. Under optimum conditions, the calibration graph was linear in the concentration
doi:10.13005/ojc/300140
fatcat:pbdb23ms45a7xprsacxd4ad57q