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purification相关的网络例句

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The result shows that the purification efficiencies of ammonia-nitrogen and ortho-phosphate by immobilized algae in a stationary phase are higher than that in an exponential phase; the starvation treatment increases the removing rates of ammonia-nitrogen and ortho-phosphate, cells of Scenedesmus starved for 48 hours can obtain higher NF4(superscript +)-N and PO(superscript 3- subscript 4)-P removal efficiencies than starved for 48, 72, 24 and 0 hours respectively.

结果表明:静止初期藻细胞对NH4-N和PO(上标 3-下标 4)-P去除率比指数末期高,处理5d后,静止初期细胞对NH4-N和PO(上标 3-下标 4)-P的去除率分别为76.7%及91.7%,指数末期细胞氮、磷的去除率分别为75.4%和88.7%;饥饿处理可明显提高藻细胞对NH4-N和PO(上标 3-下标 4)-P的去除效率,藻细胞饥饿时间对NH4-N和PO(上标 3-下标 4)-P去除率的影响大小依次为48h,72h,24h,0h。

On the basis of the literatures, the extraction, separation, purification anddetermination methods of baicalin from Scutellaria baicalensis were studied.

本文在大量文献调研的基础上,研究了黄芩中黄芩苷的提取、分离纯化及分析测定方法。

In order to recycle extra caustic soda and increase purity of sebacic acid, the research work in this thesis includes: extra caustic soda recovery, purification of sebacic acid and determination of solubility of sebacic acid in water, ethanol, and ethanol aqueous solution.

但是,它的传统生产工艺中存在过量游离碱浪费,癸二酸产品纯度不高等问题。对此本文做了三方面的研究,包括改进癸二酸生产工艺回收过剩的游离碱;提纯癸二酸;测定癸二酸在乙醇、水、乙醇水溶液中溶解度。

Methods:(1) Silica column chromatography and LH-20 were used in phytochemistry study.(2) Based on the extraction ratio of arctiin, the best extraction procedure was acheived under the direction of L9(34) orthogonal experimental design. From 10 types of resins, the one with the maximal binding ability for Arctii was selected and silica-column choramatograpy was used in its seperation and purification procedure.(3) The animal diabetic experimental model in Wistar rats was established with streptozotocin and many biochemical factors were used to indicate the pharmacological effects of arctiin, including glycosylated hemoglobin, serum creatinine, seralbumin, monoxide nitrogen, glycerin trilaurate, cholesterol, HDL-ch, LDL-ch, Blood urea nitrogen, creatinine, SOD, ET, MDA, total Urine protein and albuminuria.

(1)采用硅胶柱层析、聚酰胺层析、LH-20等方法对牛蒡子的化学成分进行研究;(2)采用正交实验设计方法,以牛蒡子苷为指标,确定了牛蒡子乙醇回流提取的最佳工艺;对10种类型大孔吸附树脂进行筛选,筛选出对牛蒡子苷吸附效果最佳的树脂;采用硅胶柱层析法,对牛蒡子苷进一步分离纯化;(3)建立实验性糖尿病大鼠模型,以GLU、TC、TG、HDL-ch、LDL-ch、TB、ALB、BUN、CREA、GHbAlc、NO、SOD、ET、MDA和尿液中TB、ALB为指标,研究牛蒡子苷药理活性;(4)以差速消化法纯化Wistar大鼠的主动脉内皮细胞并进行传代培养,测定牛蒡子苷对高糖条件下RAECs活性、RAECs释放LDH、MDA和NO的变化以及RAECs表达内皮型一氧化氮合酶表达的影响。

The recombinant protein of purification and renaturation may be a potential candidate to be a serodiagnostic reagent.

具有天然结构和高纯度的重组融合蛋白有可能成为有效的结核病血清学诊断的候选抗原。

The results showed that resin D290 had good ability of separation and purification of shikimic acid.

实验结果表明,D290树脂对莽草酸的吸附量大,脱附容易,可以应用于莽草酸的分离纯化。

ConclusionThe optimum purification technology of total flavonoids from Silybum marianum is stable and feasible.

结论优选的水飞蓟总黄酮纯化工艺稳定可行。

ConclusionThe optimum purification technology of total flavonoids from Silybum marianum is stable and feasible.

结论优选的水飞蓟总黄酮纯化工艺稳定可行。本文由中国论文联盟 WWW.LWLM.COM 收集整理。

ObjectiveTo optimize the purification process of total flavonoids from Silybum marianum.

目的优选护肝康片中水飞蓟总黄酮最佳纯化工艺。

Photolysis of paramethyl benzyl manganese pentacarbonyl5Mn-p-CH2C6H4CH3 (4a)and paramethoxy benzyl manganese pentacarbonyl5Mn-p-CH2C6H4OCH3(4b) with 1-2 equivalents of R3SiH in C6H6 or C6D6 at 5℃ yields the silyl manganese pentacarbonyls5MnSiR3 [SiR3 = SiMe2Ph (1b), SiMePh2 (1c), SiPh3 (1d), SiHPh2 (1e), SiEt3 (1f), SiMe2tBu(1g), and SiMe2Et (1h) ] in moderate to high yields after chromatographic purification.

对甲基卞基五羰基锰5Mn-p-CH2C6H4CH3(4a)或对甲氧基五羰基锰5Mn-p-CH2C6H4OCH3(4b)与1-2当量R3SiH的C6H6 或C6D6溶液在5oC光解,经色谱纯化后得到中等或高收率硅烷基五羰基锰5MnSiR3[SiR3 = SiMe2Ph(1b),SiMePh2(1c),SiPh3(1d),SiHPh2(1e),SiEt3(1f),SiMe2tBu(1g),和SiMe2Et(1h)]。

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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

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。