Bismuth nanoparticles in adsorptive stripping voltammetry of nickel
作者： L.A. Piankova , N.A. Malakhova , N.Yu. Stozhko , Kh.Z. Brainina , A.M. Murzakaev
DOI: 10.1016/J.ELECOM.2011.06.017
关键词:
摘要: Abstract Carbon screen-printed electrodes (CSPE) are used as substrate for bismuth nanoparticles immobilization. Sensors modified with of different origin (prepared by the method gas condensation and chemically synthesized) to determine nickel adsorptive stripping voltammetry (AdSV). The effect structural organization on sensor sensitivity is studied. It established that synthesized bismuth, which form agglomerates about 380 ± 76 nm electrode surface, demonstrate optimal sensory properties. Direct current (DC) voltammetric response linear observed within range from 0.85 × 10 − 8 8.48 × 10 M Ni(II) (deposition time — 120 s). detection limit 3.2 nM, precision good (RSD = 4.8% at 5.0 × 10 Ni(II), n = 14).
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