petroleum ether extract的例句大全

Three ethanol extraction of crude extract were extracted with the liquid-liquid partition method, by toxicity bioassay of PWN, petroleum ether extracts of the root crude ethanol extracts had the highest toxicity to PWN. 3.

用液-液分配法对3种乙醇粗提取物进行萃取分离，对松材线虫进行毒性生测，结果表明，根的乙醇粗提取物的石油醚萃取物对松材线虫的毒性最高。

The fluorescence parameters of the chloroform extract and petroleum ether extract of two groups of vitrinoid of somewhat similar coalification are studied.

作者研究了煤化度相近的两组煤镜质组氯仿抽出物及其石油醚抽出物的萤光参数。

The antifeedant ratio of ethyl acetate extract to Spodoptera litura ( Fabricius) was higher than that of petroleum ether extract and normal butanol extract.

乙酸乙酯对斜纹夜蛾的拒食率都高于石油醚萃取物和正丁醇萃取物，三种不同萃取物拒食率次序是：乙酸乙酯正丁醇石油醚。

Petroleum ether extract from rosemary leaves from three different provinces all have stronger antioxidant activity than BHT.

三地产迷迭香石油醚提取物的抗氧化活性均强于BHT。

Study on chemical constituents of petroleum ether extract from the seed of Fagopyrum esculentum

荞麦籽粒石油醚萃取物化学成分的研究

The contents of petroleum ether extract of the mixed sample were higher than of C3F, the difference were not significant under the rapid curing technique and were significant under the slow curing technique ( P < 0.01).

混合样品的石油醚提取含量高于C3F的，在快烤工艺下的差异不显著，在慢烤工艺下的差异显著（P<0.01）。

Studies on the Chemical Constituents of Petroleum Ether Extract of Lagerstroemia speciosa ( Linn.) Pers Leaves

大花紫薇叶石油醚部位的化学成分研究

Effects of applying sesame seed cake fertilizer on nitrogen uptake in tobacco and its distribution in nicotine, protein and petroleum ether extract

配施芝麻饼肥对烟株氮素吸收及其在烟碱、蛋白质和醚提物中分配的影响

Use chloroform, petroleum ether and absolute alcohol as extract, and set out the extractive with UV spectrum.

方法：用氯仿、石油醚、无水乙醇三种常用溶剂做提取液，提取物用紫外光谱法测定。