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. 2022 Jul 24;27(15):4725. doi: 10.3390/molecules27154725

Figure 2.

Figure 2

Absorption spectra of the complex (1, 2, 2”) and the blank (1’, 2’) at two different pH values (ammonium acetate buffer): 7.8 (1, 1’) and 4.7 (2, 2’, 2”). 2.25 × 10−6 mol L−1 of Co(II), 1 × 10−5 mol L−1 of HTAR, 1.64% of TX-114, t = 20 min at 50 °C. The concentration of APS (2”) was 1.6 × 10−4 mol L−1.