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International Journal of Electrochemistry
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International Journal of Electrochemistry
/
2013
/
Article
/
Fig 3
/
Research Article
Determination of Total Germanium in Chinese Herbal Remedies by Square-Wave Catalytic Adsorptive Cathodic Stripping Voltammetry at an Improved Bismuth Film Electrode
Figure 3
Cyclic voltammograms recorded at a BiFE plated in 1 mol L
−1
acetate buffer (pH 4.5) containing 0.08 mol/L trisodium citrate: (a) 0.1 mol L
−1
HAc-NaAc (pH 4.8) + pyrogallol (
mol L
−1
) +
mol L
−1
KBrO
3
; (b) a + Ge(IV) (20
μ
g L
−1
); deposition potential: −0.34 V; deposition time: 150 s; potential scan rate: 50 mV s
−1
.