Reactivity of a Silsesquioxane Organofunctionalized with 4-Amino-5-Phenyl-4H-[1,2,4]-Triazole-3-thiol: Complementary Characterization and an Application to Chronoamperometric Detection of L-Dopamine
作者： Daniela Silvestrini Fernandes , Vitor Alexandre Maraldi , Newton Luiz Dias Filho , Devaney R do Carmo , None
DOI: 10.1007/S12633-018-9878-0
关键词: Electrode 、 Detection limit 、 Silsesquioxane 、 Graphite 、 Materials science 、 Chronoamperometry 、 Thermogravimetric analysis 、 Nuclear chemistry 、 Copper chloride 、 Amperometry
摘要: This work describes the organofunctionalization and a complementary characterization application of an octakis(3-chloropropyl)octasilsesquioxane (1) with 4-Amino-5-Phenyl-4H-[1,2,4]-Triazole-3-Thiol (2). The functionalized silsesquioxane (3) was characterized by nuclear magnetic resonance, X-ray diffraction, transmission electron microscopy thermogravimetric analysis. After functionalized, can interact copper chloride subsequently potassium hexacyanoferrate (III) (4). hybrid composite formed (4) FT-IR diffuse reflectance. compound 4 included into graphite paste electrode (20% w/w) examined for chronoamperometric determination L-Dopamine. modified showed linear response from 2.5× 10− 5 at 4.0× 10− 4 mol L− 1. detection limit 2.08× L− 1 relative standard deviation ± 2% (n = 3) amperometric sensitivity 0.136 A
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