笨笨的2003
1, the author discusses: for adsorbent, application of silica gel column chromatography separation penicillium Margaret acid technology conditions. TLC method is used to determine the Margaret penicillium acid on the thin layer chromatography agent for ethyl acetate: acetone: acetic acid (5:2:0. 1). Through to the elution way, with the flow velocity and the investigation of the sample weight, and the column chromatography, the optimum process conditions of ethyl acetate, acetone gradient elution and sample weight, velocity on 1.0% for 1.0 mL/min. Finally the highly effective liquid phase analysis, the products covered the purity of Margaret mildew acid can be up to 90%.2, key words: penicillium acid, Margaret Silica gel column chromatography; purification.3, a constant ratio of the TLC test results with the gradient itself TLC test results.4 and purification of the mold after Margaret acid TLC spectra of purified penicillium acid HPLC spectra Margaret.
优质英语培训问答知识库