Electrochemical Determination of Caffeine Content in Ethiopian Coffee Samples Using Lignin Modified Glassy Carbon Electrode

<div>DPVs of LGCE in pH 4.0 ABS containing various concentrations of caffeine ((a)–(j): 6, 8, 10, 20, 30, 40, 50, 60, 80, and 100 <i>μ</i>M, resp.). Inset: plot of anodic peak current versus concentration of caffeine.</div>

Journal of Analytical Methods in Chemistry

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Figure 7

Figure 7: Electrochemical Determination of Caffeine Content in Ethiopian Coffee Samples Using Lignin Modified Glassy Carbon Electrode 