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- Insoluble substances is an important index of the capability of using diesel engine lubricating oil,test method of petroleum ether insolubles in GB/T5822. 不溶物是反映运用柴油机油性能的一个重要指标;铁路上使用的GB/T5822.;2-1986石油醚不溶物标准方法已经不能准确测定3、4代柴油机油中的不溶物。
- Effect of Petroleum Ether Insoluble Fraction of Hibiscus rosa sinensis flowers(HR-2) on Human Trophoblast cells and Uterus Activity of Mice in vitro 扶桑花醚不溶物HR-2对体外培养的人绒毛膜组织及小鼠离体子宫活动力的影响
- petroleum ether insoluble 石油醚不溶物
- Test Method of Petroleum Ether Insolubles in Lubricating Oil for Locomotive Diesel Engine 内燃机车柴油机油石油醚不溶物检测方法的研究
- Test method of petroleum ether insolubles in Lubricating Oil for railway locomotive diesel engine 铁路内燃机车柴油机油石油醚不溶物测定方法
- Properties: This product is weakly alkaline, slightly soluble in cold water and acetaldehyde, slightly soluble in hot water, soluble in ethanol, practically insoluble in benzene, and petroleum ether. 性状：本品呈弱碱性，微溶于冷水和乙醛，稍溶于热水，易溶于乙醇，几乎不溶于苯和石油醚。
- 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。
