[Spectrum studies and application of the reaction system phenanthroline-EBT-H2O2].
A kinetic spectrophotometric method for the determination of trace phenanthroline was proposed. The method is based on the inhibition of phenanthroline to the discoloring reaction of EBT oxidized by hydrogen peroxide in the dilute acetic acid solution. At the same time, the kinetic parameters were studied in detail. Under optimum experimental conditions, the linear range is 0.003-0.08 mg x L(-1), and the detection limit is 4.0 microg x L(-1). The method is simple, rapid, and easy to operate. The method was applied to the determination of trace phenanthroline in water samples with satisfactory results.
Zhou
Yu-you
YY
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China.
Gao
Feng
F
She
Shi-ke
SK
Lu
Qin
Q
Wang
Lun
L
D001391:Azo Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007700:Kinetics; D010084:Oxidation-Reduction; D010618:Phenanthrolines / Q000032:analysis / Q000737:chemistry*; D015203:Reproducibility of Results; D013053:Spectrophotometry / Q000379:methods*; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000032:analysis / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis
D001391:Azo Compounds; D010618:Phenanthrolines; D014874:Water Pollutants, Chemical; D014867:Water; D006861:Hydrogen Peroxide; C014527:Eriochrome Black T