Abstract
In this paper, a method is described for the determination of theine and theine in aminophglline by oscillographic titration. The theine or theine in amimophylline and AgNO 3 can make precipitation quantitatively. The quantitative and excess AgNO 3 is added in it, when reaction has been completed, the residual AgNO 3 can be carred out directly by oscillographic titrimetry with DDTC as titrant. Trace DDTC can make a slot on oscillogram of mercury membrane and silver electrodes. Using DDTC standard solution to titrate, that is the slot appearing. It can be used to indicate end point sensitively. The characteristics of the method are being quick and exact, easy to observe the final result and saving materials.
Keywords
Oscillography, Titration, Theine
Publication Date
1997-08-28
Online Available Date
1997-08-28
Revised Date
1997-08-28
Received Date
1997-08-28
Recommended Citation
Zhaoren Meng, Yongfu Zhan.
Determination of Theine and Theinein Aminophylline by Oscillographic Titration[J]. Journal of Electrochemistry,
1997
,
3(3): Article 18.
DOI: 10.61558/2993-074X.3136
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol3/iss3/18
References
1中国药典编委会．中国药典（二部），北京：人民卫生出版社，1963：580，5
