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( E )-Methyl- N ′-nitrobenzylidene-benzenesulfonohydrazide (MNBBSH) compounds were synthesized using a condensation procedure from the derivatives of nitrobenzaldehyde and 4-Methyl-benzenesulfonylhydrazine, which crystallized in ethanol and methanol as well as characterized by FTIR, UV-Vis,  1 H-NMR, and  13 C-NMR. MNBBSH structure was confirmed using a single crystal X-ray diffraction technique and used for the detection of selective yttrium ion (Y 3+ ) by I-V system. A thin layer of MNBBSH was deposited onto a glassy carbon electrode (GCE) with 5% nafion for the sensitive and selective Y 3+  sensor. The modified MNBBSH/GCE sensor is exhibited the better electrochemical performances such as sensitivity, limit of detection (LOD), linear dynamic range (LDR), limit of quantification (LOQ), short response time, and long term storage ability towards the selective metal ion (Y 3+ ). The calibration curve of 2-MNBBSH/GCE sensor was plotted at +1.1 V over a broad range of Y 3+  concentration. Sensitivity, LOD, LDR and LOQ of the fabricated sensor towards Y 3+  were calculated from the calibration curve and found as 1.90 pAμM −1  cm −2 , 10.0 pM, 1.0 nM~1.0 mM and 338.33 mM respectively. The 2-MNBBSH/Nafion/GCE sensor was applied to the selective determination of Y 3+  in spiked samples such as industrial effluent and real water samples from different sources, and found acceptable and reasonable results.

scientific reports

Trivalent Y3+ ionic sensor development based on (E)-Methyl-N′-nitrobenzylidene-benzenesulfonohydrazide (MNBBSH) derivatives modified with nafion matrix