2-Hydroxy-1-naphthaldehyde-P-hydroxybenzoichydrazone: A New Chromogenic Reagent for the Determination of Thorium(IV) and Uranium(VI)

<table>Second-order derivative spectra of [U(VI)-HNAHBH]. Amount of U(VI) <i>μ</i>g mL<sup>−1</sup>: a = 0.238; b = 0.476; c = 0.952; d = 1.428; e = 1.904.</table>

Journal of Chemistry

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Figure 2

Figure 2: 2-Hydroxy-1-naphthaldehyde-P-hydroxybenzoichydrazone: A New Chromogenic Reagent for the Determination of Thorium(IV) and Uranium(VI) 