Chemiluminescence determination of iron(II) and titanium(III) by flow injection analysis based on reactions with and without luminol |
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Authors: | Abdulrahman A. Alwarthan Alan Townshend |
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Affiliation: | Chemistry Department, University of Hull, Hull HU6 7RX Great Britain |
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Abstract: | Titanium(III) and iron(II) are shown to stimulate luminol chemiluminescence in the absence of added oxidant. Down to 10?9 M titanium can be determined. Both metal ions also produce chemiluminescence when injected into 0.1 M carbonate buffer (pH 10.4), allowing >10?6 M of each to be determined. The intensities are greater when the solutions have been deoxygenated by a stream of nitrogen, and when rhodamine B is used as a sensitizer. |
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