A facile spectrophotometric method for cobalt determination using alpha-benzilmonoxime in sodium dodecylsulfate micellar solutions.
Alpha-benzilmonoxime in sodium dodecylsulfate micellar media has been used for the spectrophotometric determination of cobalt at pH 9.0. The linear range of calibration is 0.05-1.50 microg cm(-3) of cobalt at 380 nm with molar absorptivity of 3.72 x 10(4) dm3 mol(-1) cm(-1), which is about 1.5-times greater than that of the alpha-benzilmonoxime extraction based method. The relative standard deviations, recoveries, detection limit and effects of diverse ions on the determination of cobalt were studied. These analytical results were satisfactory. The method was successfully applied to the determination of cobalt in the various samples.
Eskandari
Habibollah
H
Department of Chemistry, Faculty of Basic Sciences, University of Mohaghegh Ardebili, Ardebil 179, Iran. Habibollah-Eskandari@uma.irost.net
Karkaragh
Gholam Hassan Imanzadeh
GH
D000497:Alloys / Q000737:chemistry; D001593:Benzyl Compounds / Q000737:chemistry*; D003035:Cobalt / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents / Q000737:chemistry; D010091:Oximes / Q000737:chemistry*; D015203:Reproducibility of Results; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods; D014805:Vitamin B 12 / Q000737:chemistry
D000497:Alloys; D001593:Benzyl Compounds; D007202:Indicators and Reagents; D010091:Oximes; C484409:alpha-benzilmonoxime; D012967:Sodium Dodecyl Sulfate; D003035:Cobalt; D014805:Vitamin B 12