[Content comparison of buddleoside and pectolinarin in Cirsium japonicum, C. leo and C. leducei].

Objective: To compare Cirsium japonicum characteristics with C. leo and C. leducei, along with the content of buddleoside and pectolinarin, and lay the foundation for the quality control of C.

Phenolic compounds from Eurycorymbus cavaleriei.

Three new phenolic compounds, eurycorymboside A (1), eurycorymboside B (6), and eurycorymbic acid (8), were isolated from the stem part of Eurycorymbus cavaleriei (Sapindaceae) along with five known phenolic compounds, glucosyringic acid (2), vanillic acid 4-O-β-d-glucoside (3), koaburaside (4), tachioside (5), and 4-hydroxy-3,5-bis(3-methyl-2-butenyl)benzaldehyde (7). The structures were established on the basis of spectral analysis. The antioxidant activities of compounds 1-6 were evaluated by the 1,1-diphenyl-2-picrylhydrazyl-free radical scavenging assay.

[The microscopical and HPLC identification of several" Muxiang" raw materials].

Objective: To differentiate and identify several species of "Muxiang".

Methods: The main microscopic features and HPLC chromatograms of diagnostic components were studied.

Results: Distinguishable characters were found in two methods.

[Chemical constituents and anti-tuberculosis activity of root of Rhodiola kirilowii].

The chemical constituents of Rhodiola kirilowii were separated and purified by repeated column chromatography on silica gel, RP - 18, Sephadex LH -20 and semi-preparative HPLC. Each compound was characterized by spectroscopic and physical data. Twelve compounds have been purified and identified to be beta-sitosterol (1), tyrosol (2), trans-hydroxycinnamic acid (3), geranyl beta-glucopyranoside (4), neryl beta-glucopyranoside (5), hexyl beta-glucopyranoside (6), gallic acid (7), (-) -epigallocatechin gallate (8), rhodiolgin (9), isolariciresinol-9-O-beta-glucopyranoside (10), rhodiooctanoside (11), and sacranoside B (12).

Identification of Swertia mussotii and its adulterant Swertia species by 5S rRNA gene spacer.

Objective: This research focused on analyzing the differences of 5S rRNA gene spacer sequences on Swertia mussotii and its commonly used adulterants, including S. franchetiana, S. wolfangiana and S.

[Determination of morusin in cortex mori].

Objective: To determine the contents of morusin in Sangbaipi (Cortex Mori) of different commercial grades and species and obtained from different regions.

Method: Contents of morusin were determined by HPLC on an Alltima C18 column (4.6 mm x 250 mm, 5 microm) with acetonitrile-water (58:42) as mobile phase.

[Determination of sulphur dioxide in commonly used Chinese herbal medicines with both food and medicine function for health care by ion-chromatographic method].

Objective: To dertermine SO2 in Chinese herbal medicine with both food and medicinal functions.

Methods: A distilling and ion-chromatorgraphic method was applied.

Results: The results indicated that among 32 commonly used Chinese herbal medicines, 26 samples contained sulphur dioxide, varying in its contents and up to 3180 microg/g.