Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör.

When heavy metal ions join the human food chain, they cause severe harm to the human liver, bone, kidney, teeth, and central nervous system. Therefore, the development of new techniques for rapid, easy, simple, reliable, and low-cost identification of toxic metal ions is a key point for improving public health. Naked eye detection of hazardous metal ions with colorimetric sensors has been gained attention due to its applicability among common people. In this study, the sensor properties of 3-methyl-4-((3-phenylallylidene)amino)phenol (SAR) were investigated. The structure of the sensor were verified by Mass spectrometry, ¹H NMR, and 13C NMR. In the applications, firstly the color of the sensor was compared with/without metal ions, then the measurements were made in the UV-Vis spectrophotometer. UV-Vis spectroscopic studies exhibit that SAR shows excellent sensitivity and selectivity to Hg2+ ions in MeOH (methanol) / H2O (water) (v/v, 1:1). SAR can detect Hg2+ ions by color change from yellow to pink. Job's method and UV-Vis titration values at 528 nm were used to determine the complex stoichiometry between SAR and Hg2+ and the complex (SAR/Hg2+) stoichiometry was found to be 2:1. The binding constant was found to be 1.56 х 1012 M-2. Additionally, the binding between the sensor and Hg2+ was reversible. The limit of detection was also determined and calculated as 7.89 × 10-6 M. [ABSTRACT FROM AUTHOR]