Detecting dissolved mercury(<scp>ii</scp>) ions using chitosan-AgNP strips integrated with smartphones
Muhammad Adlim, Muhammad Syukri Surbakti, Ahmad Omar, Ratu Fazlia Inda Rahmayani, Abdul Haris Hasmar, İsmail Özmen, Musa Yavuz
Abstract
gives colloidal chi-AgNPs relatively dispersed, and the colloidal chi-AgNPs become aggregated when AgNP interacts with mercury(ii) ions. The colour change of chi-AgNP paper strips responding to the concentration of mercury(ii) and quantified using a smartphone is consistent when confirmed with UV-vis spectrophotometric determination with a comparable limit of detection (0.76 μM). The inferring ions do not significantly affect mercury(ii) analyses. Therefore, the paper strip integrated with the smartphone is effectively used for mercury(ii) detection in water as long as the mercury concentration is >1 μM. This finding might inspire advanced technology with a larger number of data references, and machine learning involvement to develop more compatible and simple mercury detection.