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Adsorption voltammetry of beryllium in the presence of 4-[(4-diethylamino-2-hydroxyphenyl) azo]-5-hydroxy- naphthalene-2,7-disulphonic acid (Beryllon III)

✍ Scribed by Changlin Sun; Jianyan Wang; Wei Hun; Tianao Xie; Wenrui Jin

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 396 KB
Volume: 259
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)85382-g

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✦ Synopsis

The adsorptive voltammetrlc behavlour of Be(U) at a hangmg mercury drop electrode (HMDE) m the presence of Beryllon III was mvestlgated m NH,-NH&l (pH 9 7) solution The results show that the Be(H) complex wrth Beryllon III can be adsorbed on the surface of the HMDE, yleldmg one peak at -0 78 V (vs SCE), correspondmg to the reduction of Beryllon III m the complex at the electrode The lurut of detectlon IS as low as 5 X lo-" mol 1-l The lmear range 1s 1 X 10e9-8 X lo-* mol 1-l

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