Applications of ultra-performance liquid chromatography to traditional Chinese medicines.

Ultra-performance liquid chromatography (UPLC), as a development of the chromatographic technique, was used in the quality control of Panax ginseng C.A. Mey.

[Studies on chemical constituents from flowers of Chrysanthemum indicum].

Objective: To study the chemical constituents of the flowers of Chrysanthemum indicum.

Methods: Chemical constituents were isolated and purified by silica gel and Sephadex LH-20 column chromatography. The structures were identified by means of physico-chemical and spectral data.