Identification and Quality Assessment of Chrysanthemum Buds by CE Fingerprinting

Figure 2

Standard fingerprint for chrysanthemum buds obtained from CE with the copper working electrode. Peak 8: glucose; Peak 11: fructose. Working potential: 0.67 V (versus SCE); separation buffer: Na₂B₄O₇ (pH 9.24, 7.63 × 10⁻³ g mL⁻¹); detection buffer: NaOH (pH 13.0); separation voltage: 20 kV, inject time: 8 s.