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- Therefore，the in vitro bioactivity of akermanite prepared by two-step precipitation method is better than that prepared by sol一gel method. 因此，两步沉淀法合成的镁黄长石相对于溶胶一凝胶法合成的镁黄长石具有更好的诱导羟基磷灰石形成能力和生物活性。
- Daqing crude oil was separated into tree components of asphaltene, polar fraction and remaining fraction with precipitation method and silica gel column. 用沉淀法和色谱分离法将大庆原油分离成沥青质、极性物和抽余油3部分。
- Methods:Sulfate ion precipitation method was used. 方法:采用硫酸根离子沉淀法。
- CTAB method,improved CTAB method,improved CTAB-high salt precipitation method were used to extract genomic DNA from the leaves of Ph. edulis. The DNA samples obtained were tested by UV spectrophotometer(3 300),agarose gel electrophoresis and PCR method. 应用CTAB法、改良CTAB法、改良CTAB-高盐沉淀法对毛竹基因组DNA进行了提取,并用紫外分光光度计(UV3300)、琼脂糖凝胶电泳和PCR分析对提取的DNA进行了检测,对DNA的产量、质量、PCR效果等方面进行了综合比较。
- 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 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。
- 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 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。
- 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.
- The seperation and purification of lipase produced by Candida antarctica(CALB) by ammonium sulphate-actone concerted precipitation method were studied. 采用硫酸铵-丙酮协同沉淀法,对南极假丝酵母产脂肪酶(CALB)进行了分离纯化研究。
- In this dissertation,the hydrosol of CuO, AgCl and AgI were prepared by precipitation method,while Cu2O by Oxidation-reduction. 本文中采用沉淀法制备氯化银、碘化银水溶胶和氧化铜水溶胶；
- The needle-like hydroxyapatite single crystals with high crystallinity were prepared by homogeneous precipitation method under hydrothermal condition. 用水热法制备出结晶度高、纯净均一的针状羟基磷灰石单晶体。
- Bovine milk was added to yak milk at the ratios from 5 % to 30 %, and whey was prepared using isoelectronic point precipitation method. 在牦牛乳中加入5%25-30%25的普通牛乳，采用等电点沉淀法制备乳清，然后用聚丙烯酰胺凝胶电泳分离乳清蛋白。
- Several one-dimensional ZnO were prepared with homogeneous precipitation method using zinc nitrate and urea as starting materials. 摘要以硝酸锌和尿素为反应原料，利用均匀沉淀法在水溶液中直接制备了多种形貌的氧化锌。
- 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。
