[Simultaneous determination of six main constituents in Swertia of Qinghai Province and Sichuan Province by HPLC].

Objective: To establish a quantitative method of simultaneously determination of swertiamarin, gentiopicroside, mangiferin, swertianolin, isoorientin, 1,8-drihydroxy-3-methoxy-xthanone in Swertia from Qinghai province and Sichuan province by HPLC.

Method: The samples were separated on the column of Kromasil C18 (4. 6 mm x 250 mm, 5 microm) which eluted with methanol and water (content 0.

[Study on HPLC fingerprint of Swertia mussotii var. mussotii from north-west area of Sichuan Province I].

Objective: To constitute HPLC fingerprint of the methanol extract from Swertia mussotii grown in Sichuan Province.

Method: RP-HPLC, methanol and water including 0.02% acid as mobile phase, gradient elution, flow rate 1.