Introduction In our previous papers,we reported that SDS could produce a strong enhancment effect on chromogenic reaction systems,such as Be;-ECAB,Al;-ECAB,Cu;-ECAB and Pd;-ECAB,but made no effect on the absorption sp...Introduction In our previous papers,we reported that SDS could produce a strong enhancment effect on chromogenic reaction systems,such as Be;-ECAB,Al;-ECAB,Cu;-ECAB and Pd;-ECAB,but made no effect on the absorption spectra of the systems if ECAB was replaced by CAS.So far, no report on the solubilizing and enhancment effect of anionic surfactant on metallic-acidic triphenylmethane dye system studied by means of NMR has been published.In this paper the interaction be-展开更多
A simple commercial graphite pencil electrode was used to investigate the electrochemical oxidation of dopamine. The electropolymerised film of eriochrome black t was prepared on the surface of graphite pencil electro...A simple commercial graphite pencil electrode was used to investigate the electrochemical oxidation of dopamine. The electropolymerised film of eriochrome black t was prepared on the surface of graphite pencil electrode by using cyclic voltammetry technique. The prepared electrode exhibits an excellent electrocatalytical activity towards the determination of dopamine. The effects of concentration, pH and scan rate were investigated. Simultaneous detection of dopamine and uric acid was investigated by using both cyclic voltammetric and differential pulse voltammetry technique. The modified electrode was also used for the detection of dopamine in injection.展开更多
The fluorophotometric determination of gallium(Ⅲ) With eriochrome blue black R (ECBBR) was investigated in the presence of OP at pH 2.0n.5. The calibration graph has a good linear relationship in the rabid of 1.6...The fluorophotometric determination of gallium(Ⅲ) With eriochrome blue black R (ECBBR) was investigated in the presence of OP at pH 2.0n.5. The calibration graph has a good linear relationship in the rabid of 1.6×10-7-1.2× 10-5 mol/L Ga(Ⅲ). The effect of foreign ions was studied and the proposed method was applied to the determination of gallium in aluminum alloy.展开更多
文摘Introduction In our previous papers,we reported that SDS could produce a strong enhancment effect on chromogenic reaction systems,such as Be;-ECAB,Al;-ECAB,Cu;-ECAB and Pd;-ECAB,but made no effect on the absorption spectra of the systems if ECAB was replaced by CAS.So far, no report on the solubilizing and enhancment effect of anionic surfactant on metallic-acidic triphenylmethane dye system studied by means of NMR has been published.In this paper the interaction be-
文摘A simple commercial graphite pencil electrode was used to investigate the electrochemical oxidation of dopamine. The electropolymerised film of eriochrome black t was prepared on the surface of graphite pencil electrode by using cyclic voltammetry technique. The prepared electrode exhibits an excellent electrocatalytical activity towards the determination of dopamine. The effects of concentration, pH and scan rate were investigated. Simultaneous detection of dopamine and uric acid was investigated by using both cyclic voltammetric and differential pulse voltammetry technique. The modified electrode was also used for the detection of dopamine in injection.
基金This research was financially supported by the Project of KJCX-01 of Northwest Normal University China.]
文摘The fluorophotometric determination of gallium(Ⅲ) With eriochrome blue black R (ECBBR) was investigated in the presence of OP at pH 2.0n.5. The calibration graph has a good linear relationship in the rabid of 1.6×10-7-1.2× 10-5 mol/L Ga(Ⅲ). The effect of foreign ions was studied and the proposed method was applied to the determination of gallium in aluminum alloy.
