作者: Taha Chabbah , Houyem Abderrazak , Radhia Souissi , Patrice Saint-Martin , Herve Casabianca
DOI: 10.3390/CHEMOSENSORS8020034
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摘要: In this work, impedimetric sensors were developed for the detection of four WFD heavy metals Pb2+, Cd2+, Hg2+ and Ni2+, by modification a gold electrode with partially biosourced polyphosphine polymers. These polymers obtained satisfactory yields polycondensation bis(4-fluorophenyl)(4-methylphenyl)phosphine sulfide oxide using isosorbide or bisphenol A. The chemical structures number-average molecular weights resulting determined NMR spectroscopy (1H, 19F, 31P) size exclusion chromatography. Glass transition temperatures varied between 184 202 °C depending on composition bio-based poly(etherphosphine) modified sensor showed better analytical performance than petrochemical based Pb2+. A limit 10−10 g/L 0.5 pM, which is 104 times lower that anodic stripping voltammetric potentiometric sensors. reversibility through rinsing an EDTA solution.