Using a new ligand for solid phase extraction of mercury

作者：Soleimani Majid^*; Mahmodi Mohamad Saleh; Morsali Ali; Khani Azam; Afshar Majid Ghahraman

来源：Journal of Hazardous Materials, 2011, 189(1-2): 371-376.

DOI：10.1016/j.jhazmat.2011.02.047

• Mercury
• Solid phase extraction
• 1,4-Bis(4-pyridyl)-2,3-diaza-1,3-butadiene (4-bpdb)
• Separation

The octadecyl silica cartridge as a sorbent and 4-bpdb (1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene) as a ligand is a simple, rapid and reliable method for extracting and preconcentrating of Hg(II) in real samples prior to cold vapor atomic absorption spectrometry. Sample solutions were passed through a column at pH 4.5 then retained mercury ions on the column were eluted with minimal amount of 0.01 M nitric acid with 3 mL min(-1) flow rate. The effect of pH, type of buffer, flow rate of sample and eluent, type and volume of the eluent were investigated and optimized. At optimum effective parameters, concentration factor and detection limit were achieved 128 and 1.87 ng L(-1), respectively.

• 出版日期2011-5-15