Discrimination of Geographical Origin for Scutellaria baicalensis Using Energy Dispersive X-ray Fluorescence Spectrometer
2012
Moon, J.Y., Experiment Research Institute of National Agricultural Products Quality Management Service, Seoul, Republic of Korea | Lee, Y.J., Experiment Research Institute of National Agricultural Products Quality Management Service, Seoul, Republic of Korea | Kang, J.M., Experiment Research Institute of National Agricultural Products Quality Management Service, Seoul, Republic of Korea | Cho, S.J., Experiment Research Institute of National Agricultural Products Quality Management Service, Seoul, Republic of Korea | Noh, B.S., Seoul Women's University, Seoul, Republic of Korea
A discrimination technique for domestic and imported Scutellaria baicalensis was developed using an energy dispersive X-ray fluorescence spectrometer (ED-XRF). Mineral content ratios, of a total of 43 species, including P, S, Cl, K, Ca, Mn, Fe, Cu, and Zn, were measured among 204 samples. Macro element content ratios and trace element content ratios were determined using the standardless fundamental parameters (SLFP) analysis. Inorganic element ratios of P, S, K, Ca, Cl, Mn, and Fe were significantly different between domestic and imported samples. The result from the canonical discriminant analysis showed that the accuracy of geographical origin discrimination was 95.15%; the correlation coefficient was 0.888. It was concluded that this technique could be used as a useful method in discriminating the geographical origins between domestic and imported Scutellaria baicalensis.
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