Abstract
A reagent indicator paper with immobilized zirconyl hexacyanoferrate(III) is prepared for the preconcentration and determination of 0.05–500 mg/L of iron(II) in the presence of more than 100-fold amount of iron(III). The paper is stable in the presence of up to 200 mg/L of 1,1-dimethylhydrazine. The test method is successfully verified using a color comparator or a minireflectometer with a red light-emitting diode as applied to samples of natural water from drilling mud flows and aqueous solutions containing 1,1-dimethylhydrazine.
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Ostrovskaya, V.M., Davidovskii, N.V., Prokopenko, O.A. et al. Rapid Test Determination of Iron(II) in Aqueous Media by Reagent Indicator Paper. Journal of Analytical Chemistry 59, 882–884 (2004). https://doi.org/10.1023/B:JANC.0000040706.48523.7a
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DOI: https://doi.org/10.1023/B:JANC.0000040706.48523.7a