Spectrophotometric Determination of Cr(III) and Pb(II) Using Their Complexes with 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene

<div>Absorption spectra of TEAC (1), TEAC-Pb(II) (2a), and TEAC-Cr(III) (3a) against methanol-water solvent, TEAC-Pb(II) (2b), and TEAC-Cr(III) (3b) complex against reagent blank.</div>

Journal of Analytical Methods in Chemistry

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Figure 1

Figure 1: Spectrophotometric Determination of Cr(III) and Pb(II) Using Their Complexes with 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene 

Figure 1 | Spectrophotometric Determination of Cr(III) and Pb(II) Using Their Complexes with 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene 