Determination of Total Germanium in Chinese Herbal Remedies by Square-Wave Catalytic Adsorptive Cathodic Stripping Voltammetry at an Improved Bismuth Film Electrode

Table 1

Results for the determination of total germanium in several Chinese herbal remedies and the recovery rate.

Sample	GF AAS	Found^a	RSD (%)	Recovery
				Addition	Found^a	Recovery rate (%)
Cultivated ganoderma lucidum (𝜇g g^−1)^b	3.22	3.18	1.41	10.00	13.15	99.7
Wild ganoderma lucidum (𝜇g g^−1)^b	1.29	1.32	3.05	5.00	6.34	100.4
Polygonum multiflorum thunb (𝜇g g^−1)^b	0.47	0.49	3.62	5.00	5.38	97.8

^a𝑛=3.
^bFrom a pharmacy, Beijing, China.