Flow-injection spectrophotometric determination of fluoride by using the zirconium/alizarin red S complex |
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| Authors: | TJ Cardwell RW Cattrall M Mitri IC Hamilton |
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| Institution: | Analytical Chemistry Laboratories, Department of Chemistry, La Trobe University, Melbourne, Victoria 3083 Australia;BHP Central Research Laboratories, Newcastle, New South Wales 2287 Australia |
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| Abstract: | A spectrophotometric flow-injection procedure is described for fluoride in aqueous samples. The method is based on the decrease in absorbance of the zirconium/alizarin red S complex at 520 nm; linear response is obtained for the range 0.1–10 mg l?1 fluoride at a sampling rate of 100 h?1. Aluminum(III), iron(III) and phosphate interfere. |
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