Citation: Zhang Yuexia , Yan Meizhan . Investigation on the Electrochemical Behaviour of Indium(Ⅲ)Coexisting With Morin and Its Analytical Applicatio——Ⅰ.The Determination of Trace Amounts of Indium by Oscillopolarography. Chinese Journal of Analytical Chemistry, 1991, 19(4): 464-467. [復制]
銦(Ⅲ)與桑色素共存時電化學行為的研究和分析應用 Ⅰ. 微量銦的示波極譜測定
Investigation on the Electrochemical Behaviour of Indium(Ⅲ)Coexisting With Morin and Its Analytical Applicatio——Ⅰ.The Determination of Trace Amounts of Indium by Oscillopolarography
Indium(Ⅲ) and morin in hydrochloric acid solution(pH2.4) or in hydrochloric acid-potassium biphthalate buffer solution(pH2.4) can yield a very sensitive,adsorptive oscillopolarographic current at -0.67 V(vs.SCE).The sensitivity and selectivity of this current could be improved still further,after adding the anion surfactant and the other auxiliary reagents.The detection limit was 0.8ng/ml (the primary derivative) and 0.2ng/ml (the secondary derivative) for In(Ⅲ) respectively.The proposed method has been applied to determination of trace amounts of indium in the superalloy,the results were accu-rate and reliable.