Abstract
The novel Zinc(II) tetra-β-[4-(2-styryl-benzimidazole-1-yl)] phthalocyanine (ZnTSBPc) and elucidated the structure using various spectroscopic and electrochemical techniques. ZnTSBPc pigment is anchored to magnetite ore particle (Fe3O4) and this composite is immobilized on glassy carbon electrode (GCE) and used for the electrochemical sensing of thiocyanate (SCN−) using cyclic voltammetry (CV). The GCE/ZnTSBPc and GCE/ZnTSBPc- Fe3O4 displayed linear response in the dynamic quantitative range 0.150 to 3.400 μM and 0.090 to 8.640 μM with sensitivity values 383.918 and 618.670 μA μM−1 cm−2 respectively. Furthermore, GCE/ZnTSBPc and GCE/ZnTSBPc-Fe3O4 electrodes were employed for designing a chronoamperometric sensor for thiocyanate in the quantitative range 0.050–0.450 μM, with sensitivity values 166.350 and 3852.687 μA μM−1 cm−2 respectively. Results inferred that ZnTSBPc-Fe3O4 composite exhibited higher catalytic performance compared to ZnTSBPc administered GCE. The enhanced activity is ascribed to the increase in conductivity with an enhanced surface area of the composite. Furthermore, the fabricated sensor exhibited good stability and superior selectivity for the thiocyanate in presence of co-existing molecules. The developed ZnTSBPc-Fe3O4 sensor was assessed for the determination of SCN− in biological (saliva and urine) samples which delivered satisfactory results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
