Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin

<table>Cyclic voltammograms obtained at bare CPE (b) and PVP/CPE (a) surfaces using <svg height="14.5" id="M3" style="vertical-align:-0.3135pt" version="1.1" viewbox="0 0 65.824997 14.5" width="65.824997" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="6.2515001" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="9.3772497" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="18.404415" y="0">×</tspan>
<tspan style="font-size: 12.50px; " x="29.182001" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="35.433502" y="0">0</tspan>
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<text transform="matrix(1,0,0,-1,-30.26,65.93)">
<tspan style="font-size: 8.75px; " x="0" y="0">−</tspan>
<tspan style="font-size: 8.75px; " x="5.99512" y="0">5</tspan>
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</svg> mol L<sup>−1</sup> morin solution in 0.05 mol L<sup>−1</sup> PBS (pH 6.5).</table>

Journal of Analytical Methods in Chemistry

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Figure 3

Figure 3: Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin 

Figure 3 | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin 