Design and synthesis a highly selective chromogenic prob based onhydrazide schiff base reagent for naked eye detection of CNˉ and AcOˉ ionsand its application in real samples

A new azomethine chromogenic probe, HL, based on hydrazide shiff base has beensynthesized and used as a colorimetric sensor for naked-aye detection of CN− and AcO− ions inorganic and semi-aqeouse media.The probe HL has been characterized using standardspectroscopic methods (IR, ۱H NMR, UV-Vis) as well as elemental analysis. The anionrecognition ability of HL was evaluated using UV–Vis spectroscopy and ۱HNMR technique. Theresults exhibited that the HL acts as a highly selective chemosensor for the detection of CN− andAcOˉ in pure DMSO and DMSO: H۲O (۹۰:۱۰ v/v) media over other anions such as F−, Cl−, Br−,I−, SO۴۲−, SO۳۲−, PO۴۳−, H۲PO۴−, HSO۴−, NO۲− and NO۳−.Fig .۱. as well as, In order to examine thepotential applicability of the prepared chemosensor, HL was used for detection Sodium diclofenac(SD) in aqeous media. As shown in Fig. ۲, a diagnosable color change was observed from colorlessto pale yellow after addition of SD. The ability of HL for rapid colorimetric sensing of SD wasstudied using UV–Vis spectroscopy, and ۱H NMR titration methods.

کلیدواژه ها:

Schiff base ، Chemosensore ، Anion sensing ، Organo-aqueous media ، Naked eye