萃取

Results The optimal process conditions for supercritical CO2 extraction were: the pressure of 25 MPa, the temperature at 45℃ and CO2 flowing rate at 20 L/h, under these conditions the yield of volatile oil in Heracleum hemsleyanum Diels reached 0.65%.

结果超临界CO2萃取最佳工艺条件为：萃取压力25 MPa，萃取温度45℃，CO2流量20 L/h，在此条件下牛尾独活挥发油的收率为0.65%。

ConclusionMicrowave extraction has the highest yield in the shortest time. But volatile oil in Heracleum hemsleyanum Diels extracted by supercritical CO2 extraction or steam distillation has better quality.

结论微波萃取挥发油得率最高，时间最短；超临界CO2和水蒸馏法萃取挥发油的质量最好，因此使用超临界CO2是萃取牛尾独活挥发油的最佳途径。

ConclusionMicrowave extraction has the highest yield in the shortest time. But volatile oil in Heracleum hemsleyanum Diels extracted by supercritical CO2 extraction or steam distillation has better quality. Thus the supercritical CO2 extraction is the best way.

结论微波萃取挥发油得率最高，时间最短；超临界CO2和水蒸馏法萃取挥发油的质量最好，因此使用超临界CO2是萃取牛尾独活挥发油的最佳途径。

The extraction temperature, extraction pressure and separation pressure all have significant effects on the extraction rate of indirubin.

萃取温度、萃取压力及分离压力对大青叶中靛玉红的萃取都有显著影响。

The experimental results are as follows:(1) TBP was suitable to monobasic carboxylic acid solutes , but was not suitable to polybasic carboxylic acid solutes (such as succinic acid and citric acid).

首次采用BP神经网络分析方法预测了不同操作条件下的络合萃取分配系数，最终获得有工业化应用价值的络合萃取剂以及络合萃取技术处理有机羧酸稀溶液的工艺条件。

Combining chemical complexation and physics extraction of monobasic and polybasic carboxylic acid, the universal liquid-liquid equilibrium model with clear physical meaning was successfully induced.

详细研究了萃取剂浓度、稀释剂浓度、水相pH值、温度和羧酸初始浓度等因素对络合萃取平衡的影响以及萃取剂的再生条件。

Ethanolic extract of Polygonum cuspidatum, aqueous extract of Centella asiatica and Ocimum gratissimum at 1.25 μg/mL were simultaneously provided with the protective capacity on lipid peroxidation and protein oxidation, but could not prolong the lag phase of LDL.

虎杖乙醇萃取物、含殻草水萃取物、印度罗勒水萃取物在1.25 μg/mL 同时可保护脂质过氧化和蛋白质氧化的发生，但对LDL迟滞期是没有延长效果。

A novel poly(phthalazine ether sulfone ketone, PPESK) stir bar was prepared. The method for analyzing trace level nitroaromatic explosives in aqueous samples by stir bar sorptive extraction coupled to GC through thermal desorption was developed.

制备了以聚醚砜酮为萃取相的新型固态萃取搅拌棒，建立了一种固态萃取搅拌棒/热解吸器直接热解吸/气相色谱联用分析水样品中痕量爆炸物的新方法。

Compared with Soxhlet extraction and ultrasonic extraction, microwave-assisted extraction is more efficient.

对比了密闭微波萃取同索氏萃取和超声萃取丹参有效成分的差异。

The quality of walnut oil with SFE-CO2 was superior to the other two kinds of oils from methods of squeezing and Soxhlet extractor.

采用超临界CO2流体萃取技术提取核桃仁中的核桃油，讨论了萃取压力、温度、时间等因素对萃取率的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失