Use of a Tensammetric Wave for the End-Point Detection in Chelatometry
作者:
Genkichi Nakagawa,
Tsuyoshi Nomura,
期刊:
Analytical Letters
(Taylor Available online 1972)
卷期:
Volume 5,
issue 10
页码: 723-728
ISSN:0003-2719
年代: 1972
DOI:10.1080/00032717208064353
出版商: Taylor & Francis Group
关键词: Tensammetric wave;Chelatometry;Copper;Cadmium;Zinc;Nickel;Cobalt;Manganese;Lead;Indium;Thorium;Bismuth
数据来源: Taylor
摘要:
A new method for the end-point detection in complexometric titration using a tensammetric wave of organic reagents such as oxine and alizarin complexone (ALC) was studied. The tensammetric wave of these reagents disappears by their chelate formation and reappears by the liberation of free indicator during the exchange reaction between indicator chelate and EDTA. This mechanism is utilized for the end-point detection in complexometric titration of metals. Since the sensitivity of tensammetric wave is extremely high, very sharp end-point can be obtained for the titration of metals even in the concentration of 10−5M.
点击下载:
PDF (191KB)
返 回