Article history: Received June 25, 2012 Received in Revised form November 6, 2012 Accepted 30 November 2012 Available online 30 November 2012 A new and simple method for the preconcentration and spectrophotometric determination of trace amounts of nickel was developed by cloud point extraction (CPE). In the proposed work, dimethylglyoxime (DMG) was used as the chelating agent and Triton X-114 w...

A column of alumina modified with sodium dodecyl sulfate (SDS) and dimethylglyoxime (DMG) was prepared for the preconcentration of trace nickel from water samples for flame atomic absorption spectrometry (FAAS) determinations. Under optimized conditions (pH=7.0; flow rate: 20 mlmin-1) nickel was retained on the column. The nickel collected on the column was eluted with 5 mL of 1 M nitric ac...

a column of alumina modified with sodium dodecyl sulfate (sds) and dimethylglyoxime (dmg) was prepared for the preconcentration of trace nickel from water samples for flame atomic absorption spectrometry (faas) determinations. under optimized conditions (ph=7.0; flow rate: 20 mlmin-1) nickel was retained on the column. the nickel collected on the column was eluted with 5 ml of 1 m nitric acid. ...

The ground-state spin arrangement and the bipartite entanglement within Cu2+-Cu2+ dimers across magnetization process of 4f-3d heterometallic coordination polymer [Dy(hfac)2(CH3OH)2Cu(dmg)(Hdmg)2]n (H2dmg = dimethylglyoxime, Hhfac 1,1,1,5,5,5-hexafluoropentane-2,4-dione) are theoretically examined using symmetric isotropic spin-1/2 Ising–Heisenberg orthogonal-dimer chain. numerical results poin...

Trace minerals play an essential role in methane production via anaerobic digestion (AD). It is important to monitor Ni(II) and Co(II) concentrations the Ni/Co concentration ratio for rapid diagnosis of ecological status or activity methanogens AD. Electrochemical detection was investigated by coating Bi-chitosan nanocomposite on a glassy carbon electrode (GCE) electrodeposition technique. A sq...