二钠的

The paper reviewed the synthesis and production of the surfactant - dodecyl diphenyl ether sodium disulfonate .

介绍了十二烷基二苯醚二磺酸钠的合成及生产情况。

It is that:(1) the related compounds in Metronidazole Buccal Tablets prepared by Chongqing Medical College can be tested by determining (321nm) the total peak area of the impurities;(2) The related compounds in Metronidazole Disodium Phosphate for Injection prepared by Chongqing Medical College can be test by determining (254nm) the total peak area of the impurities and the peak area of the largest impurity;(3) Ceftriaxone polymer in Ceftriaxone Sodium for Injection prepared by Chongqing Keru Pharmacy Co.

结果如下：①用HPLC一UV法，在321nm处检测，用归一化法计算，控制各杂质峰面积的和，可检查重庆医科大学的注射用甲硝吟磷酸二钠中的有关物质：②用HPLC一UV法，在254nm处检测，控制杂质峰面积的和及控制最大杂质峰面积，可对重庆科瑞制药股份有限公司的注射用头饱曲松钠中的有关物质实施控制；③用HPLC一Uv法，在254nm处检测，按外标法计算，可检查注射用头抱曲松钠中的聚合物；④用紫外分光光度法，在277nm波长处测定吸收度，按C6H9N303的吸收系数为377计算每片标示百分含量，可测定重庆医科大学的甲硝哇口颊片的含量均匀度；⑤用紫外分光光度法，在277run波长处分别测定释放溶液20min、50min和90min的吸收度，按甲硝哇(C6H剥303)的吸收系数为377计算释放度，可检查重庆医科大学的甲硝哇口颊片的释放度。

It is a method most in use to analyze drugs.This paper chooses the antibiotics intending to be registered as research topics to study their identification, tests and assay by ultraviolet spectrophotometry. These antibiotics includes Metronidazole Buccal Tablets, Metronidazole Disodium Phosphate for Injection, Ceftriaxone Sodium for Injection, Clarithromycin Tablets, Potassium Sodium Dehydroandroan Drographolide Succinate.

本文选择拟注册的抗生素类药物甲硝唑口颊片、注射用甲硝唑磷酸二钠(Metronidazole Disodium Phosphate for Injection)、注射用头孢曲松钠(Ceftriaxone Sodium for Injection)、克拉霉素片和炎琥宁(Potassium Sodium Dehydroandroan Drographolide Succinate)为研究对象，应用紫外分光光度法进行鉴别、检查和含量测定研究。

Uranium solution is obtained electrolytically by reducing uranyl ion on mercury cathode. The effect of the addition of various aminopolycarboxylic acids (such as EDTA, DTPA, CyDTA and TTHA) and organic water-miscible solvents (such as CH3OH, C2H5OH and CH3COCH3) on the stability of ura-nium in air has been investigated. The absorption spectra of uraniumand uraniumin 1 mol/l and 9mol/l hydrochloric acid solutions are examined.

本文采用汞阴极电解还原法制备了铀溶液，研究了在盐酸介质中各种氨羧络合剂乙二胺四乙酸二钠、二乙三胺五乙酸、1，2-环已烷二胺四乙酸、三乙基四胺六乙酸和水溶性有机溶剂甲醇、乙醇和丙酮的存在对铀稳定性影响，测定了在不同盐酸浓度中铀和铀的吸收光谱。

In this thesis, 1, 5-diaryl-3-pyrazilidinones, 1, 5-diaryl-3-hydroxypyrazoles and 3-(2, 3, 4, 6-tetraacetyl-β-D-glucopyranos-1-yl)-1, 5-diaryl-1H-pyrazoles are designed and synthesized.1, 5-diaryl-3-pyrzolidinones were obtained by condensation of 3-arylpropenates and phenylhydrazine or fluorophenylhydrazine under the catalysis of sodium methylate and the yields were about 55-80%.

在本文中，设计合成了1，5-二芳基-3-吡唑烷酮化合物、1，5-二芳基-3-吡唑烷酮化合物和3-(2，3，4，6-四乙酰基-β-D-吡喃葡萄糖-1-基)-1，5-二芳基吡唑化合物。以3-芳基-2-丙烯酸酯为原料，与芳基肼在醇钠的催化作用下，反应可以生成1，5-二芳基-3-吡唑烷酮，产率在55%以上。

Silicon phthalocyanine dihydroxide was prepared from silicon phthalocyanine dichloride through two methods. The first was alkali treating that meaned silicon phthalocyanine dihydroxide was treated in the ethanol solution containing sodium methylate .The second was acid treating meaned precipitating its solution in concentrated sulfuric acid into ice water. The product yield of the second method was 77.0％, which was higher than the method of alkali treating.

此外将合成的二氯酞菁硅采用两种方法转化为二羟基酞菁硅，第一种方法是碱处理法即将二氯酞菁硅在甲醇钠的乙醇溶液中回流得到，最高收率为53％第二种方法是酸处理法即采用二氯酞菁硅的硫酸溶液在冰水析出的方法转化为二羟基酞菁硅，其中酸溶析出法收率为77.0％。

A process of electrolytic synthesis of sodium perchlorate from sodium chlorate solution by lead dioxide anode based titanium metal is introduced.

介绍了以钛基体二氧化铅作为阳极，电解氯酸钠合成高氯酸钠的过程。

Diethylene gly- col butylmethyl ether was synthesized through the Williamson reaction between butyl bro- mide (n-C_4 H_9 Br) and CH_3 OCH_2 CH_2OCH_2 CH_2 ONa.

通过正溴丁烷与二乙二醇单甲醚钠的Williamson反应合成了二乙二醇甲基丁基醚。

In addition, we also characterized the pured product including Mono-SGC and Di-SGC by IR, UV, XRD, TG-DTG There are many similar characterization, so we can conclude that their struction are very similar. There are some special quality about Di-SGC.

通过对一甘氨酸钠碳酸盐和二甘氨酸钠碳酸盐的IR、UV、XRD、TG-DTG表征性质研究，我们发现一甘和二甘的上述表征有许多类似的地方，从而可以看出它们有十分类似的结构。

The premixing self-assembly solution of horseradish peroxide with poly(sodium 4-styrenesulfonate) is made by blending HRP and polyelectrolyte PSS,and the active.enzyme muhilayer biofilm is fabricated by altemate deposition of and PDDA on the surface of negative ionized PET.

以阳离子化的辣根过氧化物酶和阴离子聚苯乙烯磺酸钠的预混合溶液，与阳离子聚电解质聚二甲基二烯丙基氯化铵通过逐层组装，在阴离子化聚对苯二酸乙二酯表面构建了多层生物活性膜。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。