Determination of Tetracycline in Pharmaceutical Preparation by Molecular and Atomic Absorption Spectrophotometry and High Performance Liquid Chromatography via Complex Formation with Au(III) and Hg(II) Ions in Solutions

Figure 2

UV-visible spectra of (a) gold(III) ion, (b) mercury(II) ion, (c) TC. HCl, (d) TC-Au(III), and (e) TC-Hg(II) complexes in aqueous solutions (50 μg/mL each).

(a)

(b)

(c)

(d)

(e)