查询词典 sulfur ether

Study on the Approach and the Medchine for the Deprotection of Silyl Ether by Sodium Periodate

过碘酸钠去硅醚保护基方法及机理的研究

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 indicated that the allelopathic substances were mainly in the petroleum ether fraction.

结果表明，克生活性物质主要集中在石油醚相中。

After further training solution to the petroleum ether extraction of oil residue collection, and Determination of the degradation rate.

再将培养后的溶液以石油醚萃取法收集残留的石油，用紫外分光光度法测定其降解率。

Ether, replacing petroleum, walk this road, that be: best way!

代替石油，走这一条道路，那就是：最好的办法！

Furthermore,inhibition effect of petroleum ether phase was stronger than the other different extract component from ethanol extracts.

在乙醇提取物不同的萃取组分中，石油醚部分的抑菌活性最强。

Being treated with alcohol and petroleum ether, tannin purity of the extract increased by 10% and the extraction ratio reached 95%.

采用乙醇和石油醚对其进行纯化处理，可使单宁纯度提高10％，单宁提取率达到95％。

Chen et C.Ling,20 times amount of petroleum ether,refluring for 2 h,and extracting 3 times.

结论该法的最佳工艺为：过325目筛温莪术微纳米粉体，加20倍质量倍数的石油醚，回流2 h，提取3次。

In study, we used petroleum ether as the solvent instead of aether during oximation process, which increased the yield above 85% dramatically.

对该路线进行了较多的实验工作，对各步反应的诸多影响因素进行了研究，确定了合理的工艺条件。

Its main insecticidal active components were weak polar matter and mainly distributed in the polarity range of petroleum ether.

不同极性萃取物的活性比较得知，杀虫活性成分主要是酯溶性的弱极性物质，分布在石油醚所在极性范围内。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。