萃取的

The mob ile phase is a mixture of methyl alcohol and ethyl acetate and water(40:20:40,v/ v).

对萃取条件和萃取百分率，色谱分离条件进行了研究，讨论了测定的灵敏度、选择性和重现性。

The results showed that the optimum conditions were as follows: methyl alcohol as the solvent, the ratio of oil to methyl alcohol 1:2.0, extraction temperature 32℃, extracting 4 times for once 10min.

通过实验得到的最佳工艺条件为：以甲醇为溶剂，油与甲醇比为1：2.0，温度32℃，萃取次数4次，每次萃取时间10min。

The mechanism of the microwave-assisted extraction was studied by transmission electronic micrography.

讨论了不同萃取剂、溶剂浓度、萃取时间和微波功率等对提取率的影响。

The organochlorine pesticide were extracted with acetone and petroleum ether, and purified with sulfuric acid.

用丙酮提取样品中残留的有机氯农药，石油醚萃取，萃取液以浓硫酸净化。

The extraction of scandium picrate by benzo-15-crown-5 (B15C5) and dibenzo-18-crown-6(DB18C6) has been studied.

研究了苯并15冠5(B15C5)和二苯并18冠6(DB18C6)萃取苦味酸钪的萃取平衡。

The effect of various polar fractions from Psoralea corylifolia L. ethanol extract on cell proliferation and differentiation were further examined and its ethyl acetate fraction were found to be active fraction.

对补骨脂不同极性萃取物进一步进行成骨样细胞增殖和分化活性测试，发现补骨脂乙酸乙酯萃取物为补骨脂中的主要活性部分。

Accelerated solvent extraction is an effective means of extracting analytes from solid and semisolid matrices.

快速溶剂萃取是从固体和半固体基质中萃取分析物的有效方法。

Results The influence of extracted pressure,separated temperature and separated pressure on extraction ratio were significant,while the extracted tempera...

结果萃取压力、分离压力、分离温度对提取率的影响具有显著性意义，萃取温度无显著性意义。

The optimal conditions for extraction of saponins PD from Akebia trifoliate were as follows: 80 ml of 70% ethanol, 90 min action duration, then extractived by n-butyl alcohol for 3 times, hydrolyzed with 36% hydrochloric acid for 4 h at 70%, and extractived by chloroform.

结论］三叶木通中常春藤皂苷的最佳提取工艺为：70%甲醇溶液80 ml超声提取90 min，水饱和正丁醇萃取3次，36%盐酸4 ml，70℃水浴回流水解4 h，氯仿萃取2次，合并氯仿层，旋转蒸干后甲醇溶解定容。

Components were identified which represented 85.1% of the total essential oil by the silica gel column separately.Conclusion 10 components were identified which included Bicyclo (6,3,0) undeca-dien-3-one, 5,5-dimethyl ect. of the essential oil from Angelica acutiloba Kitag were analyzed for the first time.

结果超临界CO2萃取物为黄棕色油状物，得率为0.9%，用GC-MS联用技术从中鉴定出亚油酸乙酯、5，5-二甲基-双环（6，3，0）-1，7-十一烯-3-酮等30种成分，占挥发油总含量65.66%；萃取物经硅胶柱色谱分离纯化，从中鉴定出十八酸乙酯等11种成分，占总含量的85.1%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。