Figure 3

Spectroscopic characterization of purified brown pigment. (A) UV-Visible spectrum; (B) FTIR spectrum; (C) ESR spectrum; (D) X-Ray Diffraction spectrum.

Spectroscopic characterization of purified brown pigment. (A) UV-Visible spectrum; (B) FTIR spectrum; (C) ESR spectrum; (D) X-Ray Diffraction spectrum.