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Abstract
A rapid, simple and sensitive fluorimetric method has been developed for the determination of cyanide with fluorescein as fluorogenic reagent (λex = 494 nm, λem = 514 nm) at pH 6.0–7.0. A linear calibration curve was obtained in the range 0.004–2.0 μg CN−/25 ml. The detection limit is 0.004 μg CN-/25 ml. The method was successfully applied to the determination of cyanide in waste water.
∗ Supported by the National Science Foundation of China, Gansu.
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∗ Supported by the National Science Foundation of China, Gansu.