分离用的

The research work and separation methods of arachidonic acid ethyl ester were also reviewed.

同时综述了花生四烯酸的研究概况以及目前提取分离的主要方法，在论述了各种提取分离方法优缺点的基础上，提出用超临界流体色谱法制备花生四烯酸乙酯。

Methods TGGP was purified from Balanophora japonica Makino by n-hexane and ethyl acetate extraction and column chromatography.

用萃取和柱层析方法分离提纯TGGP，用酶联免疫测定法、天然聚丙烯酰胺凝胶电泳、分子排阻高效液相色谱法检测其抑制HIV gp41六螺旋束结构形成的作用，用细胞－细胞融合方法检测TGGP抑制HIV进入靶细胞的活性。

Using single oocyst infected techniques, three strains of Eimeria tenella, PT0705, FQ0709 and LJ0711, were obtained from classically symptomic coccidian chicken in Putian, Fuqing and Lianjiang Couties, Fujian Province. In order to compare their toxicity against chicken, healthy chicken of 14th-day and 21th-day were artificially infected with 1×104, 5×104 and 10×104 coccidian oocysts of PT0705, FQ0709 and LJ0711, respectively. The results showed that the strain PT0705 was the most toxic to tested chicken based on the clinical symptom, survival rate, weight increment and lesion grade investigations.

采用单卵囊分离技术，从福建省莆田市、福清市和连江县等地鸡场采集的病鸡盲肠内容物样品中，分离获得3株(PT0705、FQ0709、LJ0711)柔嫩艾美耳球虫纯种；为比较这三种虫株对雏鸡的毒性，分别用1×104、5×104和10×104个孢子化卵囊的剂量感染14日龄和21日龄健康无球虫感染雏鸡，通过临床表现、死亡率、增重情况、病变计分等指标比较，发现PT0705虫株呈现最强毒性。

The result indicates that the best method for extracting β-carotene is to saponify the test specimen one hour with 4% NaOH methyl alcohol solution in 60-70'c and then to separate with 3:7 acetone-benzine component solvent as extraction solvent, MgO as the absorbent, the acetone-benzine as the eluent. Extracted solvent has been determined in the color dish condition (1cm) by ultraviolet spectrophotometer at 447 nm. The result shows that the β-carotene in carrotis 0.134 mgg^(-1), 0.0863mgg^(-1) in red pepper and 0.0426 mgg^(-1) in spinach.

结果表明，比较优先的β-胡萝卜素提取方法是：试样用4% NaOH甲醇溶液在60℃~70℃皂化1h，用3：7的丙酮－石油醚混合溶剂提取，以Mgo为吸附剂，丙酮－石油醚为洗脱剂分离，提取液用紫外分光光度计在波长447nm，1cm比色皿条件下测定，得出蔬菜中β-胡萝卜素含量：胡萝卜为0.134mgg^(-1)，红椒为0.0863mgg^(-1)，菠菜为0.426mgg^(-1)。

Meanwhile, we discuss the deinking mechanism:solvent treatment dislodges most ink particles, then enzyme removes part of unconnected ink particles from the fibers so as to improve deinking effect of mixed office waste paper.

同时 我们对其脱墨机理进行初步研究，可以认为其作用机理为：先用溶剂预处理，将大部分油墨粒子从纤维上分离下来，然后再辅以酶的作用，将部分未与纤维分离的油墨粒子从纤维上剥离下来，从而大大地提高了混合办公废纸的脱墨效果。

The range of Mw values of amylose from different types of rice starch is from 3.29×105～2.75×106. There are no significant differences in the molecular weight distribution, Mw and RMS of the amylose leaches out at the temperature between the onset pasting temperature and 90℃.

研究表明，90℃以上高温不利于用浸出法从直链淀粉含量低的大米淀粉中分离直链淀粉，当温度低于90℃而高于糊化温度时，各个温度下均可用浸出法分离出直链淀粉，得到的直链淀粉具有十分相似的分子量分布、重均分子量和分子旋转半径。

Therefore, pretreatment of raw flax was performed with selected chelating agents such as ethylene diamine tetraacetic acid, sodium tripolyphosphate, oxalic acid and ammonium oxalate.

选用EDTA、多聚磷酸钠、草酸和草酸铵等螯合剂对亚麻原麻进行了预处理，结果表明：EDTA、草酸、多聚磷酸钠的处理效果均不理想，改变浓度、温度等条件，韧皮与麻秆并没有分离；而草酸铵是比较有效的螯合剂，用5 g/L的草酸铵在62℃处理亚麻原麻5 h后，韧皮与麻秆能够完全分离。

The experiment result shows that if Iron in the pickle of copper-smelting smoke ash is removed by Oxygen or oxidation combined with Hydrogen peroxide, Iron removing rate is 90%.

常用除铁方法主要有 [1 ，2 ] ：(1 )直接鼓风氧化生成针铁矿的形式除铁；(2 )用生成磷酸盐沉淀的方法除铁；(3 )用黄钾铁矾法除铁；(4)用过氧化氢氧化除铁；(5 )采用溶剂萃取法分离铁。

The Maoming and Fushun oil shales were treated by 1 benificiation of organic matter with HC1 and HF, 2 extraction with toluene under supercritical state (385℃,15MPa) for converting most of the organic matter into soluble bitumens.

用两种方法研究了茂名和抚顺油页岩的有机质：一是用HCI与HF处理分离有机质后直接进行化学与仪器分析；一是用甲苯在超临界态(385℃，15MPa)下抽提，得到对有机质为75—81w%的沥青，并对沥青进行结构分析。

Suitable macroporous adsorption resin (MAR DM-21) was chosen to separate SDG from extract solvent system (KOH-ethanol-water) of flaxseed cake.

然后用大孔吸附树脂与TLC相结合的方法，探讨了亚麻籽中SDG的分离纯化，并根据HPLC分析结果确定了最佳的分离纯化工艺条件。

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％。