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Amon-g of them, YNN-1 and YNN-3 were obtained from the petroleum ether extract. 其中化合物HX-3、LFM-7由石油醚部分获得；
Objective To study the chemical constituents of the petroleum ether extract fraction from Caragana microphylla Lam. 目的对小叶锦鸡儿石油醚提取物进行化学成分研究。
Results Petroleum ether could effectively clean the dirt in the umbilicus,and had less skin irritation. 新洁尔灭酊具有较好的消毒效果但对皮肤有刺激性;
Study on Chemical Constituents of Petroleum Ether Extract Fraction from Caragana microphylla Lam. 关键词：小叶锦鸡儿；石油醚；黄葵内酯；二十四烷酸；
This paper studied on oat oil from deshelled oat seeds by petroleum ether extraction. 本课题以脱壳燕麦为原料,经石油醚提取得到燕麦油。
Study on Chemical Components of Petroleum Ether Fraction of Alcohol Extract from the Leaves of Cunninghamia lanceolata Hook. 杉木叶醇提物中石油醚溶解组分的化学成分分析。
The content of petroleum ether extract in the CB-1 Cutter of 2 curing technique,3 maturities and 2 sampling ways were determined. 测定了2种烘烤工艺、3个成熟度和2种取样方式的CB-1品种中部叶烤后石油醚提取物的含量。
Descurainia sophia seeds were defatted with petroleum ether and then their glucosinolates were extracted with boiling water. 用石油醚对播娘蒿种子脱脂,热水提取,并采用DEAE sephadex A-25层析预处理,除去杂质,得到播娘蒿种子的硫苷提取液。
Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer. 目的:建立作业场所空气中氢化三联苯的采样和测定方法。
Objective:To study the effects of Calotes versicolor petroleum ether extracts(CVPE)on serum testosterone,NO and accessory sex organs of castrated mice. 目的:研究马鬃蛇石油醚提取物(CVPE)对去势大鼠血清睾酮、一氧化氮(NO)及附性器官的影响。
It is proposed that petroleum ether should be preferentially used as the organic extracting a-gent and spectrophotometers of the same type shoul... 建议应优先使用石油醚作为有机剂,在使用设备上应统一用一种型号的分类光度计。
Conclusion:The most effective method to identify the Cornus officinale and Cornus chinensis is the petroleum ether sample solution with UV spectrum. 结论:石油醚样品溶液紫外光谱区别川鄂山茱萸和山茱萸最为有效。
Three different extracts were obtained after freeze-dried Coriandrum sativum L was processed by petroleum ether, 95%-ethanol, and water respectively. 摘要分别用石油醚、95%25乙醇、水浸提芫荽，获得浸提液。
Four extracts of petroleum ether, ethyl acetate, n-butanol and water were obtained from the methanol extract of the root bark in Periploca sepeium. 杠柳根皮甲醇提取浓缩物的水悬浮液经石油醚、乙酸乙酯、正丁醇不同极性溶剂萃取后,得到石油醚、乙酸乙酯、正丁醇和水的四种不同萃取物。
Different solvent extractions of Spora Lygodii were obtained using methanol,chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra. 以甲醇、氯仿、石油醚为提取溶剂,提取中药材海金沙得到海金沙不同溶剂提取物,采用红外光谱(FT-IR)图谱鉴别法对提取物进行实验。
On contrast, the anti-feeding effects of the extracts from petroleum ether and ethyl acetate to small vegetable-moth are smaller than those to armyworm. 但对小菜蛾而言，石油醚萃取物和乙酸乙酯萃取物的拒食作用不如对粘虫作用明显。
To obtain chemical constituents from the fruit of Catalpa ovata G.Don,the methods of water extraction,ethanol extraction and petroleum ether extraction were used. 采用水提取法、醇提取法和石油醚提取法对梓树果实的化学成分进行了比较全面的定性实验。
Different solvent extractions of Spora Lygodii were obtained using methanol, chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra. 以甲醇、氯仿、石油醚为提取溶剂，提取中药材海金沙得到海金沙不同溶剂提取物，采用红外光谱(FT-IR)图谱鉴别法对提取物进行实验。
Methods The extracted liquid with petroleum ether from the geochemical samples in the north of Shaanxi was spectrally analyzed by using the optimized measurement condition. 方法用优化后的条件对陕北地区化探样品中芳烃的石油醚萃取液进行了光谱分析。
Methods Artemisinin is extracted with petroleum ether and pass column of silica gel and gradient elution with ethyl acetate,then it is tracked with TLC and detected with UV-VIS. 方法青蒿经石油醚提取浓缩,浸膏经过硅胶柱,用不同配比的乙酸乙酯洗脱,用TLC法跟踪,UV法检测。