溶剂

The influence of the loading of iodine, reaction solvent, the structure of imine and enol ethers was studied.

详细考察了碘的用量、反应溶剂、亚胺和烯醇醚的结构对反应的影响。

The crystal structure analysis of photocolored product showed that the photochromic phenomenon was due to photoisomerization from enol form to keto form.

结构分析表明：其光致变色现象是由于它在溶剂与光的共同作用下发生了从醇式到酮式的异构化。

To take lutein extraction rate as an index, the ensilage process parameters were determined, and enzyme activity in the water-organic solvent coexistence system had been analyzed.

以叶黄素的提取率为指标值，确定青贮过程的工艺参数，在水－有机溶剂共存体系分析了酶的活性。

For this reason, the best entrainer would be N,N-dimethylformamide.

由于这个原因，最好的共溶剂应是N，N-二甲基甲酰胺。

Based on the results presented in this paper, it can be concluded that N,N-dimethylformamide is the most promising entrainer.

根据本文的结果可以得出结论，N，N－二甲基甲酰胺是最有希望的共溶剂。

Fig. 6 shows that N,N-dimethylformamide is, undoubtedly, the best entrainer.

图 6表明N，N-二甲基甲酰胺毫无疑问是最好的共溶剂。

Methods The effects of pressure, temperature, time, CO2 flow rate types, and volume of entrainer on the urosolic acid extracts were studied. The optium conditions for SFE CO2 was determined. The technology of SFE CO2 was compared with that of traditional solvent extraction.

探讨萃取压力、萃取温度、萃取时间、CO2流量、夹带剂类型及用量对熊果酸收率的影响，确定了超临界CO2萃取山茱萸中熊果酸的适宜条件，并将超临界CO2萃取法与传统的有机溶剂提取法进行了比较。

Two series of Soxhlet extraction for each sample used in the presence and absence of copper respectively are conducted. Experimental results indicate that copper treatment has a strong influence on the quantity of the EOM, the extent of which depends on the sample.

实际地质样品在不同溶剂中加铜与不加铜的索氏抽提对比实验结果显示，加铜时抽提得到的氯仿沥青的量会增加，甲醇沥青则没有明显一致的变化规律。

On the sublation efficiency was investigated in details,the optimal conditions of ephedra grass sublation were selected.

采用溶剂浮选法分离富集麻黄草中的有效成分。

In chapter 3, the chromatographic fingerprint of Erigeron breviscapus herbal sample was investigated and established by using many extract methods and optimizing experimental conditions.

内容包括提取溶剂的选择，色谱条件的优化及方法学考察等，使建立的色谱指纹图谱具备系统性、特征性和稳定性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。