查询词典 ethanol

The crude extracts were isolated by column chromatography of alkaline alumina, and a bioactive fraction was obtained from the 80%ethanol eluate.

此液经碱性氧化铝柱层析分离，其80%乙醇洗脱的 C 组分显示生物活性。

Of our predecessors by improving extraction technology, used solid-phase extraction way to extract a separation, that is, the AB-8 macroporous resin for solid phase, ethanol - water eluate, through multiple-eluting And constantly improve the preparation of conditions, from the extract of red flowers in the isolated flavonoids components.

对前人的提取工艺进行了改进，用固相萃取的方式对提取液进行了分离，即以AB－8大孔吸附树脂为固相，乙醇－水为洗脱液，通过多次洗脱，不断优化制备条件，从红花的提取物中分离出黄酮组分。

The good elution concentration of ethanol was 50 % for D101 resin, and 60 % for HP20 resin.

结果表明：国产多孔树脂D101和日本产HP20树脂在水溶液中，对甘草苷的最大吸附量分别为238.7 mg/g和278.9 mg/g；吸附后的D101树脂和HP20树脂洗脱甘草苷的最佳乙醇浓度分别为50%和60%。

Objective:To investigate the combined effects of lead and ethanol on male reproductive endocrine of rats.

目的 ：探讨铅和乙醇联合作用对雄性大鼠生殖内分泌的影响。

In this reaserch, we have studied the effect of pH value of sodium fluorescein in ethanol solution on its characteristics of laser energy conversion efficiency, absorption spectra and fluorescence spectra.

本文研究了荧光素钠乙醇溶液的pH值对其激光能量转换效率以及吸收光谱、荧光光谱等特性的影响。

On the other hand, the enthalpy of same adsorption from ethanol is higher, which is similar to that from water.

而在乙醇中，同样的吸附会有较高的吸附焓，与水中的情况相似。

This paper used 95% ethanol as entrainer and studied preliminarily the effect of entrainer.

以95％乙醇为夹带剂，对夹带剂的作用进行了初步研究。

In this paper, ethanol is choosed as the entrainer to the solanesol supercritical CO2 extraction experiments by Soxhlet extraction.

本课题采用索式提取方法，确定了乙醇为超临界CO2萃取茄尼醇的夹带剂。

ResultsThe optimal extraction conditions were as follows:temperature at 50℃, pressure at 35 MPa,velocity of flow 4.5 ml·min-1,100％ ethanol as entrainer.

最佳萃取工艺参数为：萃取压力35 Mpa，萃取温度50℃，乙醇浓度100%，夹带剂流速4.5 ml·min-1，萃取率达到0.425%。

The optimum conditions of supercritical CO2 extraction were determined by orthogonal experiment as follows: extraction pressure 30 MPa, extraction temperature 40℃, 75% ethanol as entrainer (5% of solid material) and extraction time 2.0 h. The yield of volatile oil was 9.92%.

通过正交实验确定超临界CO2萃取挥发油的优化条件为：以75%乙醇（添加量为原料质量的5%）为夹带剂、萃取压力30MPa、萃取温度40℃、萃取时间2.0h，此时，挥发油的收率为9.92%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。