Modification of the solochrome violet RS method for the cathodic stripping voltammetric determination of aluminium

✍ Scribed by Alison J. Downard; H. Kipton; J. Powell; Shuanghua Xu

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 344 KB
• Volume: 262
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(92)80072-f

✦ Synopsis

A modlficatlon of the method for the determmatlon of alummmm by cathodic strlppmg voltammetry of Its Solochrome Violet RS (SVRS) complex 1s reported A rapld reactlon occurs between alummmm(III) and SVRS at room temperature at pH 8 8 Thus ehmmates the heating and coohng step reqmred for reaction at pH 4 5, the analysis time 1s consIderably shortened as complex formatlon occurs durmg the solution degassmg step The reaction does not go to completion and IS stopped after 10 mm by lowenng the pH to 4 6 For 1 X 10m6 M SVRS the detection limit was 4 5 x 10T9 M Al and the relative standard deviation at 2 x lo-' M Al was 5% (n = 8)