从山豆根中提取精制得到一种白色针状结晶，经熔点、元素分析、红外光谱、质谱、核磁共振等测定，与文献报道的苦参碱数据一致，确证为苦参碱。 A white needle-like crystal was obtained by extraction and purification from Sophora chinensis root. The melting point, elemental analysis, infrared spectroscopy, mass spectrometry, and nuclear magnetic resonance were used to determine the content of matrine as reported in the literature and confirmed as matrine.