Maleanilic Acids as Highly Selective Reagents for the Amperometric Determination of Thorium (IV)
作者:
C.L. Sharma,
R.S. Arya,
期刊:
Analytical Letters
(Taylor Available online 1979)
卷期:
Volume 12,
issue 9
页码: 1005-1008
ISSN:0003-2719
年代: 1979
DOI:10.1080/00032717908059779
出版商: Taylor & Francis Group
关键词: thorium (IV);amperometry;maleanilic acids
数据来源: Taylor
摘要:
Thorium has been determined amperometrically at an applied e. m. f. of -1.2V with fifteen maleanilic acids. Out of these o-tolyl, p-tolyl, 1-naphthyl, 2-naphthyland 4-amino maleanilic acid were found promising analyticalreagentsand most effective. Th(IV) in the range 6.60 to 2350.0 mg per 100 ml can be determined with an error of ± 0.2%. The interference of fifty-five ions were studied and only five ions Zn(II), Pb(II), Fe(III), UO2(II) and Zr(IV) interfered. which could be masked by the addition of S2O23or SCN−, Cl−or SO2-4, SCN−or citrate, citrate or tartrate and P2O4-7respectively.
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