萃取

The number of components in steam distillation extraction for chafu was about 13,mainly containing Thymyl methyl ether,Beta-selinene and so on,which occupied over 18% in all components.

水蒸气蒸馏法和超临界萃取测定柴胡挥发油成分比较发现，鉴别峰的数量相对较少，水蒸汽蒸馏法提取的柴胡挥发油中鉴定出13个主要成分，占挥发油组分的18％以上，主要成分为百里基甲基醚、β—蛇床烯等；超临界萃取的柴胡低极性成分中鉴定出9个主要成分，占低极性组分的20％以上。

By extracting the leaves of Tilia mongolica using different solvents respectively, different kinds of extracts were obtained.

本文通过使用乙醇溶剂对蒙椴树叶进行连续提取，再选择不同的有机溶剂进行萃取分离，得到不同的萃取物。

In chapter 3, 83 volatile chemical constituents have been identified from the petroleum ether extracted part of ethanol extract of Debregeasia longifolia Wedd., and the relative percentages of the compounds are determined by GC method. From the extract of trichloromethane and ethyl acetate, 8 compounds have been isolated.

第三章首次对长叶水麻乙醇提取物的石油醚萃取部分分离并鉴定出83种成分，并用毛细管气相色谱面积归一化法测定了各组分的相对百分含量；从氯仿和乙酸乙酯萃取部分分离得到了8种化合物，用波谱学方法鉴定了其中2种成分。

And though the complexity and cost of extracting the information will surge as the complexity of the artificial worlds surge, it will probably remain easier to do than in the unwired organic world.

尽管随着人造世界复杂性的激增，萃取信息的复杂性和成本也会激增，无线有机界仍然能够更容易萃取到信息。

And though the complexity and cost of extracting the information will surge as the complexity of the artificial worlds surge, it will probably remain easier to do than in the unwired organic world.

尽管随着人造世界复杂性的激增，萃取信息的复杂性和成本也会激增，无线有机界可能仍然更容易萃取到信息。

In result of DPPH free radical clean test, we got good effect that using 50% ethanol and ethanol extracted Vitaceae plants in the test of ferrous ion chelating effects have over 50% restraint rate by using 50% ethanol.

在清除DPPH自由基方面结果显示，用乙醇及50%乙醇萃取的葡萄科植物具有不错效用，其中50%乙醇萃取细本山葡萄在还原能力测定及螯合亚铁离子实验中皆达到50%以上的抑制率。

The selected process consists of several steps as follows. Firstly, ammonifying the oily mixture of PXA pyrolysis by ammonia or aqueous ammonia, then adding the organic solvent to extra

实验结果表明，合适的分离提纯工艺为：先将裂解产物用氨水氨化、有机溶剂萃取，然后用硫酸酸化11-CUA铵盐水溶液、再将粗品11-CUA于合适介质中结晶，得到高纯度11-CUA晶体；优化工艺条件为：氨化pH值8.0～10.0、温度25-35℃，甲苯为萃取剂，酸化pH值1.5～2.0、温度55-60℃，环己烷为结晶介质，粗品11-CUA在环己烷中溶解温度50～55℃、与环己烷初始质量比4：100、结晶前沉降分层时间10min、结晶温度20℃。

The sample was extracted by acetonitrile plus water, degreased by n-hexane, and purified by adsorption.

样品用乙腈水提取，正己烷除脂，提取液经液液萃取和反萃取，电子捕获检测器检测，外标法定量。

The sample was redissolved in the acetonitrilved in the acetonitrile-water (3:2, v/v), then analyzed using LC-MS/MS in multiple reaction monitoring mode via positive electrospray ionization with an Agilent ZORBAX SB-C18 column as the analytical column.

样品用1%醋酸乙腈溶液萃取，经Waters Sep-Pak Vac固相萃取柱净化，乙腈－甲苯（体积比为3：1）洗脱，旋转蒸发浓缩，用乙腈－水（体积比为3：2）溶解，以Agilent ZORBAX SB-C18色谱柱分离，以电喷雾电离串联质谱在正离子多反应监测模式下进行测定。

The microemulsion formed by saponified extractant was destructed with the lanthanide loading in organic phase.

皂化的D2EHPA、PC88A、P229萃取剂的有机相是清亮透明的w/o型微乳状液，萃取稀土离子后，有机相发生破乳。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。