Summary
Investigations of Pb(II)-rutin complex have been carried out in ethanol, at pH=4.5 and at room temperature. It has been found that a relatively stable complex of yellow-green colour is formed; the molar ratio Pb(II): rutin=1∶2 in the complex, was established by Job's and Nach's method as well as by the method of molar ratios. By applying Sommer's and Nach's method, the relative stability constant of the complex was obtained (logβ 2′= 6.48–7.05). Conditions for the quantitative determination of Pb(II) and rutin, respectively, by means of the complex, are presented as well.
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Radović, Z., Malešev, D. Spectrophotometric investigations of the complex of Lead2+ and rutin. Mikrochim Acta 86, 247–252 (1985). https://doi.org/10.1007/BF01197824
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DOI: https://doi.org/10.1007/BF01197824