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- Results Good clarified effect was obtained with chitosan,the loss of jasminoidin was comparatively small,which were better than the precipitated method by alcohol. 结果壳聚糖絮凝法能使蓝芩提取液得到良好的澄清效果,主要成分栀子苷损失较小,优于醇沉法。
- A dissolving precipitated method has been developed for the preparation of chitosan having a high degree of deacetylation in the presence of ethyl alcohol. 以乙醇为反应介质,采用溶解沉淀法制备了高脱乙酰壳聚糖。
- Methods The clarified effect of chitosan was investigated,the content of jasminoidin was determined,and compared with precipitated method by alcohol. 方法使用壳聚糖作为澄清剂,考察壳聚糖絮凝澄清效果,主要成分栀子苷为作为含量考察指标,并与醇沉法作对比。
- Methods:Sulfate ion precipitation method was used. 方法:采用硫酸根离子沉淀法。
- Trace Lead were enriched through co precipitation by using chloride oxide zircono as an enrichment agent,and determinated by atomic absorption spectrophotometry. 研究了以锆作捕集剂,用共沉淀捕集分离,用原子吸收分光光度法测定铅的方法。
- Magnesium titanate was obtained with special liquid phase precipitation method. 采用特殊液相沉淀法制备了镁的钛酸盐。
- The method seems good but it needs to be tried out. 这个方法似乎不错,但需要试验一下。
- The precipitation method is an efficient, economical and practical method for removing the colloidal impurities. 是去除胶体杂质有效、经济、实用的方法。
- The square ratio method and basin precipitation method are commended for annual runoff calculation. 在年径流计算中,建议采用面积比法和流域雨量法。
- Catalytic activities of CuO ZnO ZrO 2 catalysts, prepared by various precipitating methods such as mixed precipitating, two step precipitating and coprecipitating, for synthesis of methanol from CO and H 2 at 4.0 MPa were studied. 研究了在4MPa压力下,用混沉法、分步沉淀法及共沉淀法制得的CuO-ZnO-ZrO2催化剂对CO/H2合成甲醇的催化活性。
- The pure,Y_2O_3-doped and Sm_2O_3-doped nanozirconia powders were prepared by the precipitation method. 利用液相沉淀方法制备了未掺杂、氧化钇掺杂和氧化钐掺杂的纳米级氧化锆粉体。
- Using ZnSO4.7H2O and urea as raw materials, nanometer ZnO was prepared by homogeneous precipitation method. 摘要以硫酸锌、尿素为原料,采用均相沉淀法合成了纳米氧化锌。
- The out break of the war precipitated the collapse of our firm. 战争的爆发加速了我们公司的倒闭。
- The cobalt oxide is produced from cobalt catalyst waste by using acidolysis precipitate method. 用含钴催化剂废料作原料,采用酸溶-沉淀法工艺制取氧化钴。
- Her remark precipitated my decision. 她的话促使我作出决定。
- The discoloring effectiveness of raw L-lactide with active carbon method is better than that of precipitation method. 用活性炭对L-丙交酯粗品进行脱色比用沉淀法脱色效果好,收率较高。
- The spherical zirconia and Ni-coated zirconia composite powders were synthesized by the chemical precipitation method. 摘要采用化学沉淀法分别制备球形氧化锆及镍/氧化锆复合微球粉体。
- Chiyoda Mutual Life Insurance Co. 千代田寿险公司(日本)
- Using barium hydroxide octahydrate and urea as raw material,barium carbonate is prepared by homogeneous precipitation method. 以八水氢氧化钡和尿素为原料,采用均相沉淀法制备了碳酸钡粉体。
- Nanocrystalline titania powders in the rutile phase were prepared by the homogeneous precipitation method using TiCl4 and TiCl3 as starting materials. 通过TiCl3、TiCl4共同水解可以制备出金红石相的氧化钛粉体.