[A study on the quality of various species of Dalbergia]

The content and main components of volatile oil and the content of totalflavone in various species of Dalbergia (DA) are studied by steam-distillation, gas chromatography-mas spectroscopy and spectrophotometry. The results show that the content of volatile oil in Dalbergia odorifera (DO) is 3.61-3.79%, and the content of total flavone is 2.51-5.82%. The content of volatile oil of other species of DA is less than 1.50%, their content of total flavone is markedly different from that of DO.