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A quantitative determination of the total alkaloid in Corydalis Ochotensis Turcz was established by acid dye colorimetry. The effects of wavelength, pH of the phosphate buffer and the quantity of acid dye were studied. Two different dyes were compared according to the yield of berberine hydrochloride. The method with bromophenol blue dye was proved to be more accurate, more stable with good reproducibility...
Pseudo-ginsenoside GQ is a new semisynthetic ocotillol-type saponin with remarkable anti-myocardial ischemia activity. The purpose of this study was to characterize the pharmacokinetics of pseudo-ginsenoside GQ (PGQ) after sublingual intravenous administration in rats. Rats (n=200) were given 3.0, 12.0, 48.0 mgkg1, and were taken blood at 2, 5, 10, 20, and 40 min and 1, 2, 4, 6, 8, 12, and 24h after...
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