Molecular-emission spectroscopy in cool flames. Part IV. The determination of chloride, bromide and iodide by thermal-emission spectroscopy in the presence of indium salts
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 94 (1121) , 643-652
- https://doi.org/10.1039/an9699400643
Abstract
A sensitive and selective molecular-emission method for the determination of chloride, bromide and iodide is described, involving measurement of the intense InCl, InBr and InI band-emission signals. A cool nitrogen-hydrogen diffusion flame is used and measurements are made at 360, 376 and 410 nm, respectively. Chloride can be determined in the presence of a large excess of bromide and iodide, bromide in the presence of a large excess of chloride and iodide, and iodide in the presence of a large excess of chloride. The use of other flame types and the gallium halide system are also described.Keywords
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