silica gel tlc 中文意思是什麼
silica gel tlc
解釋
硅膠薄層色譜法-
We got 4 parts from the extraction of astragalus variabilis bunge through systemic research ways of phytochemistry, which respectively are the part of petroleum ether, the part of petroleum ether, the part of etoa and the part of n - buoh the part of n - buoh are isolated by the successively methods of silica - gel column chromatography, tlc and sublimation
摘要採用植物化學成分系統研究的方法，從變異黃芪醇提總浸膏中分段萃取得到石油醚提取部分、氯仿提取部分、乙酸乙酯提取部分和正丁醇提取部分。 -
Many kinds of chromatograph including silica gel, d101 resin, sephadex l - 20 gel, rp - 8 and hplc are used in extracting and separating chemical constituents form these plants. certainly, they need to select the best eluate by tlc. some technique including ms ( ei - ms, fab - ms ), id and 2d nmr ( cosy, roesy, hmbc, hmqc ) been used in identifying these chemical structures
通過各種硅膠柱層析，吸附樹脂， sephadex系列凝膠樹脂以及rp - 8類反向柱等層析材料以及高效液相色譜等技術，利用不同的洗脫體系對這兩種植物的化學成分進行分離得到純的單體化合物，然後利用ms （ ei - ms ， fab - ms ） 、一維nmr 、二維nmr （ cosy ， roesy ， hmbc ， hmqc ）等技術對這些化合物進行結構鑒定，利用ir和uv對這些化合物進行了表徵。
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