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- W2912892074 abstract "An electrode modified by a Ti complex in Nafion was used in the electrochemical detection of nitroaromatic compounds (NACs). The catalyst reduced nitroaromatic groups by a six-electron process with a high apparent rate constant, k1, which was estimated to be at least 19 000 mol–1 L s–1 by simulation of the first step of the cathodic reduction of 4-nitrophenylacetic acid, which was used as model molecule. The modified electrode was prepared and optimized in terms of Nafion and catalyst concentrations. In the chosen analytical medium, the Ti-catalyst-containing electrode showed good stability in the presence of nitro species. A standard deviation around 15% was calculated on the analysis performed with 28 different modified electrodes, which could be expected for a drop-coating process. We show that the modified electrode detects several nitroaromatic compounds such as nitrophenols, mononitroaniline, and dinitrotoluene with detection limits ranging from 1 × 10–4 to 9 × 10–4 g L–1 (0.2 × 10–6 to 5.1 × 10–6 mol L–1). As an interesting feature, the sensor exhibits good selectivity toward NAC detection because titanocene does not catalyze the reduction of nitroaliphatic compounds." @default.
- W2912892074 created "2019-02-21" @default.
- W2912892074 creator A5022868858 @default.
- W2912892074 creator A5031610103 @default.
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- W2912892074 date "2019-01-23" @default.
- W2912892074 modified "2023-10-15" @default.
- W2912892074 title "Ti-Catalyst Biomimetic Sensor for the Detection of Nitroaromatic Pollutants" @default.
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- W2912892074 doi "https://doi.org/10.1021/acs.analchem.8b04671" @default.
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