✦ LIBER ✦

Determination of trace titanium in KH2PO4 by differential pulse adsorption voltammetry

✍ Scribed by Xin Zhao; Wenrui Jin; Xueying Wang

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 357 KB
Volume: 306
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(94)00578-a

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✦ Synopsis

A sensitive differential pulse adsorption voltammetric method for the determination of trace titanium(W) in KH,PO, has been studied based on the formation of the Ti(IV) complex with diphenylguanidine and 4-[(4-diethylamino-2-hydroxyphenyl)-azo]-5-hydroxynaphthalene-2,7-disulphonic acid (Beryllon III). The reduction peak current of the complex was proportional to the concentration of Ti(IV) in the range 7.3 X lo-lo-1.2 X 1W' mol/l. The detection limit of 1.7 X 1W lo mol/l can be obtained under optimum experimental conditions. The method was applied to the determination of trace Ti(IV) in KH2P0, with satisfactory results.

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