On-Line Iodometric Determination of Semicarbazide and Hadrazine using Flow Injection Amperometry

M. A. Abdalla and H. M. Al-Swaidan

Department of Chemistry, College of Science, King Saud University, Riyadh-114 51, Saudi Arabia.

ABSTRACT:

Iodine is produced on-line in a flow injection system by injection of hydrochloric acid or sulphuric acid into neutral or slightly alkaline iodide/iodate eluent and is determined ampeiomet-rically at a platinum electrode. Compounds that can be oxidized or iodinated by iodine are determined by incjecting them, in acid solution, into the iodide/iodate eluent and the excess of iodine after reaction with organic compound is determined by flow injection analysis amperometry at a platinum electrode. The reaction was incomplete in this direct injection but good reproducibility was obtained. Determination can also be made by injecting pre-reactcd solution of iodine and the organic compound in order to monitor the excess iodine.

KEYWORDS:

On-Line; Semicarbazide; Injection; Amperometry

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Copy the following to cite this article: Abdalla M. A, Al-Swaidan H. M. On-Line Iodometric Determination of Semicarbazide and Hadrazine using Flow Injection Amperometry. Orient J Chem 1989;5(3).

Copy the following to cite this URL: Abdalla M. A, Al-Swaidan H. M. On-Line Iodometric Determination of Semicarbazide and Hadrazine using Flow Injection Amperometry. Orient J Chem 1989;5(3). Available from: http://www.orientjchem.org/?p=41447