Hg(II)-imprinted polymers were analyzed by Fourier transform infrared spectroscopy. The spectrum of IIP2, prepared using diphenylcarbazone, showed two additional peaks attributed to the stretching of nitrogen bonded to the aromatic carbon of diphenylcarbazone, not found in IIP1. Comparing leached and unleached IIP2, the peak shape of C=N (1636.3 cm−1) in unleached IIP2 was drastically changed emphasizing the interaction of mercury with nitrogen on 4VP. Moreover, a slight shift of the additional peaks was observed. These results show the possible interaction of mercury ions both with the nitrogen bonded to the aromatic carbon of diphenylcarbazone and the nitrogen of the monomer.
- Lucia Mergola
- Sonia Scorrano
- Roberta Del Sole