The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
类胡萝卜素和石油醚提取物含量在陈化三个月时降低，之后上升。
Overview: The Division mainly rock rose extract rock China's Zhejiang province rose to the growth of raw materials extracted by petroleum ether extract obtained.
概述：本司岩蔷薇浸膏主要采用中国浙江地区生长的岩蔷薇为原材料，通过石油醚提取制得浸膏。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱，利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
Overview: The Division clouds extract of tobacco from Yunnan mainly as raw materials extracted by petroleum ether extract obtained in Yunnan tobacco.
概述：本司云烟浸膏主要采用云南产的烟叶为原材料，通过石油醚浸提云南地区烟叶制得浸膏。
Petroleum ether extract content increased.
石油醚提取物含量有增加。
These curves and datas are of great use to compositions and function of petroleum ether and liquid paraffin, this analytical method is based on TBP distillation of coal liquefied oil.
这些曲线及数据不仅对石油醚和液体石蜡的组成和使用性能有参考价值，而且这种分析方法为煤液化油的实沸点蒸馏奠定了基础。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
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。
Overview: the Division plum extract mainly produced in Yunnan plum child, obtained through the extraction of petroleum ether extract.
概述：本司梅子浸膏主要采用云南产的酸梅子，通过石油醚浸提制得浸膏。
Conclusion: the extract of petroleum ether of Rhizoma Amorphophalli is possibly one of antineoplastic parts of the plant.
结论：蛇六谷石油醚萃取物可能是该药抗肿瘤的有效部位之一。
The extracts of acetone and petroleum ether had no effect to the hatching rate and egg development duration, but they were toxic to the newly hatched larvae of Plutella xylostella.
丙酮和石油醚提取物对小菜蛾卵的孵化及卵的发育历期没有影响，但有增加初孵幼虫死亡率的作用。
Mainly by tobacco bud extract petroleum ether extract obtained tobacco bud extract.
烤烟花蕾浸膏主要是通过石油醚浸提烤烟花蕾制得浸膏。
The cultural fruiting bodies of the Gymnopilus spectabilis were phytochemical investigated using layer extracts with petroleum ether, diethyl ether, methanol and water and silica gel chromatography.
本研究采用石油醚、乙醚、甲醇、水溶剂梯度提取法和多种柱层析法，对栽培橘黄裸伞子实体进行了化学研究。
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。
Overview: The Division mainly sweet clover extract of sweet clover Sichuan region of China for raw materials, petroleum ether extraction by roots in the system.
概述：本司草木犀浸膏主要采用中国四川地区的草木犀为原材料，通过石油醚浸提根茎制得。
Volatility chemical constituents of the extracts of mulberry (Moms atropurpurea R. ) by petroleum ether and ethyl acetate were analyzed by GC-MS.
对广东桑桑椹石油醚和乙酸乙酯提取物中的化学成分进行GC-MS分析。
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。
Method the extracts of petroleum ether, ether, ethyl acetate, ethanol and hot water from the whole plant were used to determine the in vitro miti-oxidant and antibacterial activity.
方法对楮头红的石油醚、乙醚、乙酸乙酯、乙醇和热水的粗提取物分别进行体外抗氧化和抑菌试验。
The yield of petroleum ether extractives from the crowns of C. lanceolata was 5 4% of its dry weight.
杉木绿冠的石油醚提取物得率，为其绝干重量的5．4％。
Through single factor and orthogonal experiments, extraction of oil from soybean embryo and its composition were studied by using petroleum ether as degrease solvent and GC, respectively.
以大豆胚芽出油率为指标，石油醚为脱脂溶剂，通过单因素和正交试验对大豆胚芽索氏提取工艺进行了研究，并用气相色谱对胚芽油的脂肪酸组成进行了分析。
It was found that both n-hexane and petroleum ether were good solvent for ultrasonic-assisted process.
结果表明，正己烷和石油醚作提取溶剂效果较好。
It is soluble in such organic solvents as acetone, ethylether or petroleum ether instead of water.
易溶于丙酮、或石油醚等有机溶剂，不溶于水。
Overview: the Division tree orchid extract mainly the growth of China's Guangxi region orchid tree as raw material obtained by petroleum ether extract extract.
概述：本司树兰浸膏主要采用中国广西地区生长的树兰为原材料，通过石油醚提取制得浸膏。
Method: Water extracts and ethanol extracts were obtained by maceration method, while petroleum ether extract was obtained by soxhlet's extracter.
方法：用浸渍提取法从洋虫中得到水提取物和乙醇提取物，用索氏提取器提取得到石油醚提取物。
The results showed that the antioxidative activity of the extract by water was stronger than that of Vc, while the extracts by 95 % ethanol and petroleum ether had no obvious antioxidation for lard.
结果表明：溪黄草水提取物具有一定的抗猪油自动氧化能力，且作用强于抗坏血酸，而95%乙醇和石油醚提取物对猪油的抗氧化作用不明显。
Another part is about the separating from the Petroleum ether fraction of Selaginella uncinata (Desv. ) Spring.
另一部分是对瑶药翠云草石油醚萃取部位化学成分进行分离。
In four extracts from PMEW treated with methyl alcohol and water, petroleum ether, chloroform and ethyl acetate, extract rate of methyl alcohol and water was the highest.
通过对PMEW萃取分离发现，在甲醇水、氯仿、石油醚和乙酸乙酯四种萃取物中仍以甲醇水的萃取率最高。
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。
Extraction of Gallium from high concentration HCl solution using organic phases which composes of TBP and butyl acetic ester, xylene, petroleum ether and kerosene, respectively, are investigated.
系统研究了以TBP为萃取剂，乙酸丁酯、二甲苯、石油醚、 煤油为稀释剂，从高酸度盐酸溶液中萃取镓。
Extraction of Gallium from high concentration HCl solution using organic phases which composes of TBP and butyl acetic ester, xylene, petroleum ether and kerosene, respectively, are investigated.
系统研究了以TBP为萃取剂，乙酸丁酯、二甲苯、石油醚、 煤油为稀释剂，从高酸度盐酸溶液中萃取镓。
应用推荐