silica gel G

Oleanolic acid was developed with chloroform-methanol-formic acid ( 20:1:0.2), isolated on the silica gel G-CMC-Na thin-layer plate, colored with a 10% ethanol sulfate solution, and quantified by the CAMAG ⅱ thin-layer scanner.

用氯仿－甲醇－甲酸（20：1：0.2）为展开剂，在硅胶G－CMC－Na薄层板上分离齐墩果酸，10%硫酸乙醇溶液显色，用CAMAGⅡ型薄层扫描仪进行定量测定。

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Thin layer plate: CMC-Na silica gel G plate.

薄层板：羧甲基纤维素钠硅胶G薄层板。

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Cinnamon twig was identified with petroleum ether ( 60-90)-ethyl acetate ( 17:3) as developer and dinitrophenylhydrazine ethanol solution as coloration using silica gel G.

桂枝：采用硅胶G板，以石油醚（60-90℃）&醋酸乙酯（17：3）为展开剂，显色剂为二硝基苯肼乙醇试液。

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The unsaponifiables from mentioned corn oil rich in selenium were separated by designed TLC of silica gel G into 7 fractions. The sterol, 4-methylsterol and triterpene alcohol were analyzed quantitatively by GC.

用制备薄层层析法将富硒玉米油的不皂化物分成7个部分，然后用气相色谱法分别测定甾醇、4-甲基甾醇和三萜醇的组成。

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Methods: silica gel G and GF_ ( 254) thin layer plates were used and developed by different developing agents to identify the remedium cardinale-sophora seed, Cassia Seed and Radish Seed.

方法：采用归胶G板和硅胶GF254板，用不同的展开剂分别对方中苦豆子、决明子和莱菔子进行薄层色谱（TLC）鉴别。

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