查询词典 ether extract

For the determination of organochlorine and pyrethroid pesticide residues, the sample was extract with petroleum ether.

有机氯和拟除虫菊酯类农药残留测定中，利用石油醚对样品进行提取。

The extract of petroleum ether of Rhizoma Amorphophalli is possibly one of antineoplastic parts of the plant.

蛇六谷石油醚萃取物可能是该药抗肿瘤的有效部位之一。

Anhydrous magnesium sulphate can be used and rinse with a little ether to extract all the freebase out.

无水硫酸镁可用于冲洗和一个小醚提取所有freebase了。

The main aim of this paper is research the technology that combine enzyme treatment and petroleum ether to extract the Jatropha curcas L.

本论文旨在对酶处理与石油醚浸出相结合提取麻疯树籽油脂工艺的研究。

The main aim of this paper is research the technology that combine enzyme treatment and petroleum ether to extract the Jatropha curcas L.seed.

笔者对酶处理与石油醚浸出相结合提取麻疯树籽油脂工艺的研究。

Methods Silica gel column chromatography and PTLC were used to separate and purify the compounds from the petroleum ether soluble fraction of ethanol extract.

方法用硅胶柱色谱和制备薄层等方法从乙醇提取物的石油醚萃取部位分离化合物，通过波谱方法鉴定其结构。

The effects of circumfluence temperature were also studied. The result showed that it was optimal to extract motionlessly 60-mesh-sieved rubber seed for 1h using petroleum ether. The yield of solvent extraction was 10% higher than that of three or four times machine-squeezed oil.

结果表明：橡胶籽仁含油率为46.72%；从橡胶籽油的成本、操作安全和劳动生产效益考虑，在橡胶籽仁粉能过60目筛、橡胶籽仁粉与溶剂为10：75、常温常压下，以石油醚为提取溶剂、静置提取方式、提取时间1h最佳，溶剂提取橡胶籽油达35.18%，比经3～4次机械压榨提取橡胶籽油高10%左右。

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％。

By marinating ground whole Senecio scandens Buch-Ham with 70% of ethanol solution, treating it with ultrasonic-microwave, and decoloring it with ether, then drying it with frozen vacuum, thus the frozen-vacuum-dried powder of S. scandens extract was prepared.

将千里光全草粉用体积分数70%乙醇浸泡，经超声波－微波处理，用乙醚萃取脱色，冷冻真空干燥，制备千里光提取物冻干粉。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。