petroleum ether

petroleum ether什么意思,petroleum ether翻译

基本解释

na.: 石油醚
网络: 煤油；石油谜；石油精

英汉解释

• 石油醚

例句

• 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 amount in the sample in a Soxhlet Extractor, using petroleum ether extraction LH, circulating at least 6 times per hour.

  将适量样品放在索氏萃取器中，用石油醚萃取lh，每小时至少循环6次。

• In this paper, microwave-assisted extraction of petroleum ether and volatile oil, and with the response surface method was optimized.

  本文研究了微波辅助石油醚法提取小茴香挥发油，并用响应曲面法对工艺进行了优化。

• 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。

• 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。

• The extraction effect of petroleum ether was better than that of mixed petroleum ether-acetone solution.

  石油醚的提取效果比石油醚-丙酮混合液的提取效果好。

• Methods: The As in the oil was extracted by the solvent of petroleum ether (non-toxic level), and determined by spectrophotometry.

  方法：分别以无毒级石油醚、盐酸作为溶剂和萃取剂，将油中砷萃取，以光度法测定其含量。

• 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 petroleum ether extract was not significant respectively in each treatments of medium-topped tobacco after curing.

  上部烟叶不同处理烤后烟叶石油醚提取物含量，各处理间无显著差异。

• the emendation mortalities of the test insects were low when water extract and petroleum ether extract were adopted.

  水萃取物和石油醚萃取物试虫死亡率低。