Electrocatalytic oxidation and flow amperometric detection of hydrazine at an electropolymerized 4-vinylpyridine/palladium film electrode

✍ Scribed by Tao Li; Erkang Wang

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 386 KB
• Volume: 9
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.1140091516

✦ Synopsis

A poly(4-viny1)pyridine (PVP)/Pd film electrode was constructed for the electrocatalytic detection of hydrazine. The preparation of the PVP/GC electrode was performed by electropolymerization of the monomer 4-vinylpyridine onto the surface of a glassy carbon electrode. Subsequently, palladium is electrodeposited onto the polymer modified electrode surface. The ion-exchange function of PVP polymer is helpful to this process in view of the tetrachlorapalladate anion. Compared with the PdGC electrode, the modified electrode displays a better mechanical stability in a flowing stream. The PVPPd film electrode exhibits higher sensitivity when detecting hydrazine with a detection limit of 0.026 ng (S/N=3).