Isophthaldihydroxamic acid as analytical reagent: Spectrophotometric determination of manganese |
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| Authors: | F Salinas M Jiménez-Arrabal |
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| Institution: | Department of Analytical Chemistry, Faculty of Sciences, University of Extremadura, Badajoz, Spain |
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| Abstract: | The reactivity of isophthaldihydroxamic acid against inorganic ions is established. The spectrophotometric study of its reaction with Mn(II) shows that a complex of stoichiometry 1:2 (Mn:L) is formed (? = 3760 liters · mol?1 · cm?1 at 490 nm). A spectrophotometric method is developed for the determination of manganese in the range 3–9 ppm. |
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