Early warning sensors for monitoring mercury in water.
作者： U. Pinaeva , D. Lairez , O. Oral , A. Faber , M-C. Clochard
DOI: 10.1016/J.JHAZMAT.2019.05.023
关键词:
摘要: Poly-4-vinylpyridine grafted poly(vinylidene difluoride) (P4VP-g-PVDF) nanoporous polymer electrodes were found to be sensitive for Hg(II) analysis. The fabrication and characterization of functionalized membrane-electrodes by FESEM FTIR are presented. Functionalized nanopore charge state versus a large range pH (1-10) was investigated registering the streaming potential. This isoelectric point is achieved at pKa P4VP (pH = 5). Mercury adsorption solid-liquid interface obeys Langmuir law. A protocol accurate analysis ppb level established. Calibration curves performed different real water samples (mineral water, ground surface water) spiked analyzed. resulting sensor intended integrated into existing systems or used standalone as portable devices. first generation prototype exhibiting its own potentiostat, software set membrane-electrode pads
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