Pomegranate Punica granatum peel waste as a naked-eye natural colorimetric sensor for the detection and determination of Fe+3 and I- ions

The utilization of renewable and abundant agricultural waste such as Pomegranate (Punica granatum L.) peel extract has been developed wherein a simple extraction of dried peel in water offered a natural sensor; ensuing yellowish solution comprising phenolic compounds reacted explicitly to detect Fe+3 and I- solutions by naked-eye. The UV-Vis absorption spectrum of the resulting extracted mixture was drastically changed toward the longer wavelengths only after the addition of the Fe3+ and I- while there was no discernible spectral change due to the addition of a broad range of other common cations and anions. In the case of Fe3+ and I- , the trans-formation can be followed by the naked eye in the concentration range of 5 x 10(-4) M and 1 x 10(-2) M, respectively. An acceptable and reasonable detection with 47.05426 mu M efficiency was attained in comparison to other Fe3+ indicators such as ferroin.

Automated summary

The utilization of pomegranate peel extract as a natural sensor for detecting Fe+3 and I- solutions by naked eye has been developed. The extract showed high selectivity towards Fe3+ and I- with significant spectral changes, making it an effective detection method.