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- W1750768525 abstract "A highly selective and sensitive electrochemical sensor for detection of l-cysteine based on a graphene oxide/carboxylated multiwalled carbon nanotube/manganese dioxide/gold nanoparticles composite (GO/CCNTs/[email protected]2) was developed. The property of the glassy carbon electrode which was modified by GO/CCNTs/[email protected]2 contributed to increasing the sensing surface area and the electronic transmission rate. Besides, the addition of MnO2 could effectively improve the selectivity and specificity of l-cysteine determination. The morphology and composition of GO/CCNTs/[email protected]2 were characterized by scanning electron microscope, energy dispersive spectrometer, fourier transform infrared spectroscopy and X-ray diffractometer and the results evidenced that GO/CCNTs/[email protected]2 flower-like structure was efficiently synthesized. The determination results of l-cysteine indicated that the surface area, electronic transmission rate and sensitivity of GO/CCNTs/[email protected]2 sensor were highly increased. Under the optimal conditions, the electrochemical sensor exhibited excellent analytical performance with good selectivity, reproducibility and stability. The linear range of l-cysteine was from 1.0 × 10− 8 to 7.0 × 10− 6 mol L− 1 and the detection limit was 3.4 × 10− 9 mol L− 1 (3δ). The proposed electrochemical sensor was successfully applied to the determination of trace l-cysteine in spiked water samples." @default.
- W1750768525 created "2016-06-24" @default.
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- W1750768525 date "2015-11-01" @default.
- W1750768525 modified "2023-10-17" @default.
- W1750768525 title "Highly selective and sensitive electrochemical sensor for l -cysteine detection based on graphene oxide/multiwalled carbon nanotube/manganese dioxide/gold nanoparticles composite" @default.
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- W1750768525 doi "https://doi.org/10.1016/j.jelechem.2015.09.023" @default.
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