[Studies on chemical constituents of Dendranthema indicum var. aromaticum].

Objective: To study chemical constituents of Dendranthema indicum var. aromaticum.

Methods: The constituents were separated and purified by column chromatography with silica gel and Semi-preparative HPLC.

[Analysis of the chemical constituents of essential oil from Magnolia biondii by GC-MS].

Objective: The chemical components of essential oil from Magnolia biondii were analyzed by GC-MS.

Methods: Essential oil was extracted by steam distillation (SD). The chemical components of essential oil were analyzed by GC-MS.