A new method for the simultaneous determination of micro iron and cobalt is proposed, based on the first derivative spectra of ternary complex formed by iron and cobalt with EDTA and H 2O 2 in solution of 0.

Determination of Trace Amount of Cobalt in Water Samples by Spectrophotometry with Cloud Point Extraction;

Study on removing cobalt by β-naphthol in solution purification for zinc hydrometallurgy;

Effect of cobalt and its complexation on the key enzymes in methanogenesis;

Determination of Trace Co(Ⅱ) in Water by FAAS after Preconcentration with Modified Oorganobentonite by Dithizone;

THE SIMULTANEOUS DETERMINATION OF Bi(Ⅲ)、Cu(Ⅱ)、Co(Ⅱ) AND Ni(Ⅱ) BY THE PARTIAL LEASTSQUARES METHOD;

In the presence of Tween-80,the reagent with Co(Ⅱ) forms a salmon pink complex(1∶2) in the buffer solution of Na_2CO_3-HCl at pH 11.

Simultaneous determination of trace cobalt and nickel in water by 2.5th differential stripping voltammetry;

Simultaneous Determination of Microamounts of Nickel and Cobalt in Nickel Mineral by First-derivative Spectrophotometry;

The nickel electrolyte of low concentration cobalt and solution of richness cobalt can be obtained by purifying nickel electrolyte by solvent extraction with P507.

Determination of Co,Cr,Fe,Mn,Mo,Ni,Ti in PTA by DUO-ICP-AES;

Test of Fe,Ca & Co in kelp by atomic absorption spectrometry;

The Research of Quick Determination of Co,Ni in Water;

In this paper UV Vis absorption spectrum of Cobalt(Ⅱ) with the histidine and the thermodynamical molar absorptivity of the complex reaction were determined and the complexes of Cobalt(Ⅱ) with the histidine were compared in terms of stability.

The stability constants of coordination compounds formed from dicarboxylic acids(that is oxalic acid,malonic acid,Succinic acid,maleic acid,O-phthalic acid,4-nitrophthal-ic acid, glutaric acid)with cobalt(Ⅱ)and nickl(Ⅱ)were determined by using potential-pH titrimetry at temperature 25 ℃ and ionic strength I= 0.