Facile and One Pot Synthesis of Gold Nanoparticles Using Tetraphenylborate and Polyvinylpyrrolidone for Selective Colorimetric Detection of Mercury Ions in Aqueous Medium
Figure 5
UV-vis spectra of PVP stabilized AuNPs (pH = 12) before and after each addition corresponding to 10 μM Hg2+ ion; Inset. Calibration plot of intensity of absorption value versus Hg2+ ion concentrations for each addition of 10 μM.