Abstract
A rapid and convenient method for the determination of furfural is presented that is based upon sequential perturbation of the Mn(II)-catalyzed B-Z oscillating system with different amounts of furfural using a continuous-flow stirred tank reactor (CSTR). When the sample was injected, the change in the amplitude and/or period was linearly proportional to the logarithm of the concentration of furfural over the range 3×10−8∼1×10−5 mol L−1. This method gave a detection limit of 3×10−9 mol L−1 under optimum conditions. Finally, the possible mechanism of furfural perturbation in the oscillating reaction is discussed.
When the furfural was injected into the Mn(II)-catalyzed B-Z oscillating system, the change in the amplitude and/or period was linearly proportional to the logarithm of the concentration of furfural over the range 3×10−8~1×10−5 mol L−1, with a detection limit of 3×10−9 mol L−1 under optimum conditions.
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Acknowledgements
This work was supported in part by the Project of International Cooperation between China and Ukraine (043-05), the National Natural Science Foundation (20475044) and the Invention Project of Science & Technology (KJCXGC-01, NWNU), China.
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Gao, J., Dai, H., Yang, W. et al. Determination of furfural in an oscillating chemical reaction using an analyte pulse perturbation technique. Anal Bioanal Chem 384, 1438–1443 (2006). https://doi.org/10.1007/s00216-005-0282-4
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DOI: https://doi.org/10.1007/s00216-005-0282-4