Oscillopolarographic Determination of Maleic Hydrazide
- VernacularTitle:马来酰肼的示波极谱法测定
- Author:
Jianhua TANG
- Publication Type:Journal Article
- Keywords:
Maleic hydrazide;
Oscillopolarography
- From:
Journal of Kunming Medical University
1989;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
In the supporting electrolyte of 0.2mol/L LiCl, a distinct cathodic wave was produced by using first or seeondary derivative oscillopolarography to measure maleic hydrazide.The peak potential was -1.95V (Vs.SCE).The peak current was linearly proportional to the concentration of maleic hydrazide in the range of 1.0?10~(-4)mol/L to 2.0?10~(-5)mol/L and 1.5?10~(-5)mol/L to 4.0?10~(-6)mol/L.(PH5.6～9.3).The detection limit was lower than 2.0 ?10~(-6)mol/L.The error of various methods(relative deviation)was less than 0.3 per cent. Therefore,a simple,rapid and accurate analytical method for determining the purity of maleic hydrazide has been afforded in this paper.
