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1 article(s) from Kumar, Sushil

Glassy carbon electrodes modified with multiwalled carbon nanotubes for the determination of ascorbic acid by square-wave voltammetry

Sushil Kumar and
Victoria Vicente-Beckett

Beilstein J. Nanotechnol. 2012, 3, 388–396, doi:10.3762/bjnano.3.45

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Figure 1: Typical CV and SWV voltammograms (left) at a bare GCE, 2 mmol/L AA in 0.1 M acetate buffer (pH 3.7)...

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Figure 2: SWV of 1 mmol/L AA (in 0.1M acetate buffer, pH 3.7), scan rate = 75 mV/s: influence of varying the ...

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Figure 3: SWV on MWCNT–GCE, 0.25 mmol/L AA in different pH media (phosphate buffer, pH 6.5 and 7.5; acetate b...

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Figure 4: SWV in increasing AA concentrations (0.25–5.0 mmol/L in 0.1 M acetate buffer, pH 3.7); scan rate = ...

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Figure 5: SWV voltammograms of four commercial orange juice samples (diluted by 1/5) in acetate buffer, pH 3....

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Figure 6: Standard addition plot of SWV data for (1/5)-diluted juice 3.

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Figure 7: Typical HPLC chromatograms of sample of (1/5)-diluted juice 1 and 0.5 mmol/L AA standard (inset).

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Published 10 May 2012

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