乙二酸

Based on hydrogen peroxide and ammonium persulfate as compounded initiating system,unsaturated vinyl monomers were used to directly copolymerize a new high range polycarboxylate water reducer structurized in carboxyl,esterquat and amido as main chain and in polyethylene glycol ether as side chain.

以过硫酸铵和双氧水为复合引发体系，采用不饱和单体直接共聚，得到一类主链为羧基、酯基、酰胺基，侧链为聚乙二醇醚基的新型聚羧酸高效减水剂，研究了共聚物的结构对分散性能的影响。

OBJECTIVE:To observe the efficacy and safety of domestic disodium etidronate in treatment of postmenopausal osteoporosis.

目的：考察国产羟乙膦酸二钠治疗绝经后骨质疏松症的疗效和安全性。

Absorbance ratio derivative method was developed for the simultaneous determination of glyoxal and glyoxylic acid.

利用比值导数波谱法同时检测乙二醛和乙醛酸，为GLY催化氧化过程的实时、快速分析提供了新的手段。

Average current efficiency is 85.06%, chemical yield is 94.01%, average bath voltage is≤4.5V, the concentration of glyoxalic acid is ≥40%, the concentration of oxalic acid is ≤2.5%, and no oxalic aldehyde in the product is present.

本论文通过优化工艺控制，确定了最佳工艺条件，使平均电流效率达85.06%，化学收率达94.01%，平均槽电压≤4.5V，产品中乙醛酸浓度≥40%，草酸≤2.5%，产品中无乙二醛，可以满足下游产品的质量要求。

Serotonin (5-HT), its precursors tryptophan and 5-hydroxytryptophan (5-HTP), major metabolites 5-hydroxyindoleacetic acid (5-HIAA); and 3-methoxy-4- hydroxyphenylethylene glycol , homovanillic acid , the respective major metabolites of noradrenaline and dopamine were measured by a method of HPLC.

应用高效液相色谱法测定其中5—羟色胺（5-HT）系列代谢物：色氨酸、5-羟色胺酸（5-HTP）、5-HT、5-羟吲哚乙酸（5-HIAA）；多巴胺的主要代谢产物3-甲氧基-4-羟基苯乙酸；去甲肾上腺素的主要代谢产物3-甲氧基-4-羟基苯乙二醇等。

Purpose To study the therapeutic dose of 153Sm-EDTMP for interradiation.

目的 探讨153Sm-乙二胺四甲撑膦酸内照射治疗剂量。

The prepared PU was an elastic solid,which could dissolved in ethanol,and it exhibited strong deep purple fluorescence at the peak of 365 nm along with a shoulder at 386 nm as a thin film. Obviously,the prepared PU also was a kind of uncommon ultraviolet-emitting polymer materials.2.A novel water-soluble rod-coil block copolymer was designed and prepared successfully via the facile isocyanic acid polycondensation method using polyfluorene as rod segment and polyethylene glycol as coil segment in the main chain for the first time.

所制备的聚氨酯是一种弹性固体，可以溶解在乙醇中，同时又显示出具有半导体性质的荧光性能——最大荧光发射峰在365 nm并且在386 nm处有一个小的侧肩峰，可见它又是一种非常难得的紫外发光聚合物材料。2、首次采用了简单的异氰酸酯反应，成功地将聚芴作为刚性链段和聚乙二醇作为柔性链段，以嵌段方式连结到聚合物分子主链上，从而形成了一种新型的具有刚性链—柔性链结构的嵌段共聚物。

Results Ginsenosides were produced from esterolysis of corresponding malonyl ginsenosides in red ginseng processing.

结果在红参加工过程中丙二酸单酰人参皂苷酯键水解产生相应的人参皂苷，脱羧产生相应的糖乙酰化人参皂苷。

Results Ginsenosides were produced from esterolysis of corresponding malonyl ginsenosides in red ginseng processing. Another reaction of malonyl ginsenosides in red ginseng processing was decarboxylated to produce corresponding acetyl ginsenosides.

结果在红参加工过程中丙二酸单酰人参皂苷酯键水解产生相应的人参皂苷，脱羧产生相应的糖乙酰化人参皂苷。

Objective With Monte Carlo and MIRD methods respectively, the absorption dose of ^153Sm- EDTMP was calculated in different target organs of nasopharygeal carcinoma patient so as to explore their clinical value.

文章摘要：目的以153Sm-乙二胺四甲撑膦酸（153Sm-EDTMP）治疗鼻咽癌多发性骨转移为例，分别用蒙特卡罗法（Monte Carlo，MC）和MIRD方法计算153Sm-EDTMP治疗后病灶和骨髓等靶器官的吸收剂量，探讨其临床应用之不同。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。