Chinese Journal of Magnetic Resonance ›› 2007, Vol. 24 ›› Issue (2): 163-168.

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1H NMR Fringerprints of Scutellaria Baicalensis

SUN Qing-lei;ZHAO Hong-xia;LIN Yun-liang;WANG Xiao;
CHEN Li-zong;CHENG Chuan-ge;LIU Jian-hua   

  1. 1.Shandong analysis and test center, Shandong academy of science, Jinan 250014, China; 2.School of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100, China
  • Received:2006-07-14 Revised:2006-09-19 Online:2007-06-05 Published:2009-12-05
  • Contact: Sun Qing-lei

Abstract: 1H NMR spectra of Scutellaria baicalensis extracts were obtained by PFT-NMR and compared with those of the flavonoids found in the extract including baicalein, oroxylin A, wogonin and baicalin. 1H NMR chemical shifts were assigned. The spectra of different Scutellaria baicalensis extract samples showed good reproducibility, and all contained the spectral fingerprint of flavonoids. It appears feasible to use the 1H NMR fingerprints of Scutellaria baicalensis extract as a criterion to check the authenticity of Scutellaria baicalensis and Scutellaria baicalensis products.

Key words: 1H NMR, fingerprints, similarity, scutellaria baicalensis