The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.
将杠柳枝皮粉末的乙醇提取物悬浮于水后，依次用石油醚、乙酸乙酯和正丁醇萃取。
Juemingzi extracts were prepared with ethyl acetate, n-butanol and water respectively.
以决明子为原料，分别用乙酸乙酯、正丁醇和水制备粗提取物。
Conclusion:Toxic components mainly exist in water-soluble part and n-butanol extract of Herba Siegesbeckiae.
结论：毒性成分主要存在于极性大的溶剂中，即残留的水溶性部分及正丁醇部分。
The identification of Radix scutellariae was silica gel G plate, n-butanol-glacial acetic acid-water(7:1:2) as the development reagent, chloride ferric(1%) as color developing reagent.
后者黄芩的鉴别：硅胶G薄层板，正丁醇-冰乙酸-水（7：1：2）为展开剂，1%三氯化铁乙醇溶液为显色剂；
Result: Toxic reactions were found in the mice of n-butanol extract group and water-soluble part group.
结果：正丁醇部分组、水溶性部分组小鼠出现毒性反应。
The TLC used the silicon sheet with the developing solvents n-butanol, acetic acid and water (4:2:1).
薄层层析采用的展开剂为正丁醇：乙酸：水 （4：2：1），层析板为硅胶板。
The acaricidal activity of the extracts of n-butanol and distilled water were not detected in this test.
其中丁香石油醚提取物杀螨活性最为突出，是丁香的主要杀螨活性部位。
The effect of molar ratio of n-butanol to lactate, the amount of catalyst, reaction time and water-carrying agent on the yield of ester was studied. The optimal condition of reaction was determined.
考察了醇酸比、催化剂用量、反应时间及带水剂对产率的影响，确定了该反应的最佳条件。
ConclusionThe active parts of anti-inflammation and stopping cough were Chloroform extract, water extract and n-butanol extract. The analgesic parts were Chloroform extract and water extract.
结论抗炎和止咳的有效部位为鱼腥草氯仿部位、水部位和正丁醇提取部位，镇痛的活性部位为鱼腥草氯仿部位和水部位。
ConclusionThe active parts of anti-inflammation and stopping cough were Chloroform extract, water extract and n-butanol extract. The analgesic parts were Chloroform extract and water extract.
结论抗炎和止咳的有效部位为鱼腥草氯仿部位、水部位和正丁醇提取部位，镇痛的活性部位为鱼腥草氯仿部位和水部位。
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