Electrothermal Atomic Absorption Spectrometric Determination of Cobalt, Copper and Nickel in Fresh Water After Their Preconcentration by Precipitate Flotation
作者:
Katarina Čundeva,
Trajçe Stafilov,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 4
页码: 833-845
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708006428
出版商: Taylor & Francis Group
关键词: Precipitate flotation;collector;fresh water;cobalt;copper;nickel;determination;electrothermal atomic absorption spectrometry
数据来源: Taylor
摘要:
A method is developed for simultaneous separation and determination of μg/L levels of Co(II), Cu(II) and Ni(II) in fresh water by precipitate flotation. The optimal conditions of the experimental procedure with hydrated iron(III) oxide and iron(III) tetramethylenedithiocarbamate as collectors were investigated. The pH interval of the working medium, within which Co(II), Cu(II) and Ni(II) can be successfully separated, was determined from the aspect of collectors and surfactant stability. The amounts of the elements investigated were determined by electrothermal atomic absorption spectrometry. The detection limit of the method is 0.15 μg/L for cobalt, 0.03 μg/L for copper and 0.79 μg/L for nickel.
点击下载:
PDF (442KB)
返 回