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crystal water
相关语句
  结晶水
    ResultsThe complex was pure, mol ratio of Mg 2+ and ascorbic acid was 1∶2 and it contained 4 crystal water. The content determined by co ordinate titration process and iodimetry is consist.
    结果制备出的抗坏血酸镁为纯品 ,Mg2 + 与抗坏血酸的摩尔比为 1∶2 ,结晶水的数目n =4,用配位滴定法和碘量法测得产品含量基本一致。
短句来源
    Determination of Crystal Water in Inorganic Compounds and Organic Acid by Thermogravimetry
    热重法用于测定无机化合物和有机酸盐类药物的结晶水
短句来源
    X-rays diffraction analysis showed that KT prepared with spray-drying process was amorphous,Differential scanning calorimetry and thermal gravimetric analysis showed that KTcontained no crystal water,melted at 107~116℃,and decomposed at 199℃。
    差示扫描量热法和热重分析表明,本品不含结晶水; 在107~116℃融化;
短句来源
    Thermogravimetry shows there is the crystal water of 3 molecules in the zinc norfloxacine.
    通过热重量分析 ,表明氟哌酸锌分子中含有 3分子的结晶水 ;
短句来源
    OBJECTIVE To study the stability and crystal water of synthesizing secnidazole.
    目的 对合成的塞克硝唑进行结晶水的分析和稳定性研究。
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  “crystal water”译为未确定词的双语例句
    Conclusions:The result shown that Karl-Fischer method to determine water content in Aminophyllinum by using chloroform-methanol(1∶1)as the solvent is more accurate,two crystal water in Aminophyllinum molecule suggested in Chinese Pharmacopoeia 2005 seems to be not accurate.
    结论:以氯仿-甲醇(1∶1)为溶剂测定氨茶碱水分结果准确; 卡氏试剂中含有一定的吡啶可使测定结果灵敏度增加;
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  crystal water
The results suggest that the reduction in tablet hardness is dependent on the dehydration of crystal water, and the values of the slopes indicate that the bonding energy of the unpulverized sample was stronger than that of the pulverized sample.
      
As a result, a three-dimensional framework of [Ca(H2O)H2Edta)] with built-in crystal water molecules is formed.
      
Its ionic structure is composed of [NiL]2+ complex cations, ClO4- outer-spheric anions, and crystal water molecules.
      
Under storage in light, the compounds decompose from the surface; in darkness I and II are stable, whereas III and IV can lose part of the crystal water.
      
The structures are built up of [RuNOCl5]2- (I, IV), [RuNOCl4OH]2- (II, III), and [RuNOCl4(H2O)]- (IV) complex anions, (n‐Bu4N)+ cations, and crystal water molecules (III, IV).
      
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The physico-chomical properties of Kitasamycin tartrate(KT) made in China were studied. X-rays diffraction analysis showed that KT prepared with spray-drying process was amorphous,Differential scanning calorimetry and thermal gravimetric analysis showed that KTcontained no crystal water,melted at 107~116℃,and decomposed at 199℃。 KT absorbed moisture at room temperature,and its critical rela-tive humidity was 95%,KT was very soluble in water,methanol,eth-anol,or acetone;freely soluble in chloroform;...

The physico-chomical properties of Kitasamycin tartrate(KT) made in China were studied. X-rays diffraction analysis showed that KT prepared with spray-drying process was amorphous,Differential scanning calorimetry and thermal gravimetric analysis showed that KTcontained no crystal water,melted at 107~116℃,and decomposed at 199℃。 KT absorbed moisture at room temperature,and its critical rela-tive humidity was 95%,KT was very soluble in water,methanol,eth-anol,or acetone;freely soluble in chloroform; slightly soluble in ethyl acetate,very slightly soluble in ether or carbon tetrachloride;insolub-le in benzene,petroleurm ether,or hexane.Its specific rotation in water was-39.6°~-42.8°,The pH value of its water solution of 3.0% was 4.1~4.3.KT was stable to light,but unstable to high telnperatureor high humidity.

本文报道了国产酒石酸吉他霉素理化性质的研究。X-射线衍射分析证明,用喷雾干燥法制备的酒石酸吉他霉素为无定形。差示扫描量热法和热重分析表明,本品不含结晶水;在107~116℃融化;199℃以上时迅速分解。它在室温条件下有吸湿性其临界相对湿度为95%。在水、甲醇、丁醇、丙酮中极易溶解,易溶于氯仿;微溶于醋酸乙酯;在乙醚、四氯化碳中极微溶解;不溶于苯、石油醚和乙烷。本品在水中的比旋度。3.0%水溶液的pH值为)1~4.3。对光稳定,而在高温或高湿条件下不稳定。

A coordination compound of bisglycinato zinc (Ⅱ ) monohydrate was prepared by thegeneral synthesis method. The product samples were identified by chemical method. The content was analysed by compleximetry. The result showed that zinc is 98. 8%. The thermal analysis showed that it contains one molecule of crystal water and it decomposes when melting at 281℃. Its structure was elucidated on the basis of infra-red studies as well as elementary analysis.

制备了二甘氨酸含锌(Ⅱ)配合物,并用化学法进行了鉴定,配位滴定法进行了含量测定,用热谱确定了配合物含一分子结晶水,在281℃熔化时分解,经元素分析和红外光谱确定了结构。

Determination of crystal water of 15 kinds of inorganic compounds and 7 kinds of salts of organic acids was carried out by thermogravimetry(TG). This method proved quick, simple and suitable for the determination of crystal water in most drugs.

采用热重法测定无机化合物和有机酸盐类药物的结晶水。该方法快速、简便,对大多数药物均适用。

 
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