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- The perservative in liquid beverage was extrcated with n-hexane.The hexane layer was subjected to cyclodextrine polymer resin colume.The colume was eluted with aqueous solution of ethanol. 用正己烷萃取液体饮料中的防腐剂,使萃取液经环糊精交联树脂分离后,用乙醇溶液洗脱。
- An aqueous solution of a nonvolatile substance. 溶液不易挥发物质的水溶液
- PHOTOCATALYTIC OXIDATION OF THE DILUTED AQUEOUS SOLUTION OF ETHANOL ON MODIFIED TiO_2 POWDERS 稀乙醇水溶液在修饰TiO_2粉末上的光催化氧化
- An aqueous solution of formaldehyde that is37percent by weight. 甲醛溶液,福尔马林甲醛的澄清水溶液,含有37%25的甲醛
- aqueous solution of ethanol 乙醇水溶液
- An aqueous solution of formaldehyde that is37 percent by weight. 甲醛溶液,福尔马林甲醛的澄清水溶液,含有37%25的甲醛
- Nanosize silver particles have been prepared by reduction of aqueous solution of AgNO3 in the presence of polyvinylpyrrolidone, ethanol and de-ionized water, hydrazine hydrate was used for the reduction. 摘要采用聚乙烯吡咯烷酮、无水乙醇和去离子水混合溶液,利用水合肼还原硝酸银制备纳米银粒子。
- The CMC of aqueous solution of C9F17O(CH2CH2O)18H was 1.32 g/L. C9F17O(CH2CH2O)18H水溶液的临界胶束浓度为1.;32g/L。
- Methoda: The aqueous solution of konjack glucomannan was used. 方法:用磨芋葡甘露聚糖水溶液作为黏合剂制备尼莫地平片。
- Aqueous solution of SPG-l-P had an apparently positive Cotton effect at 20 C . SPG-1-P在常温中性水溶液中有明显的正科顿吸收(Cotton Effect)。
- It is also present in an aqueous solution of nitrourea or a sulphuric acid solution of nitrourea. 它也存在于硝基脲的水溶液或硝基脲的硫酸溶液中。
- When an aqueous solution of the protein gelation is cooled, a polyer gel is formed. 蛋白质明胶水溶液冷却时形成聚合体凝胶。
- A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions. 碱碱金属的碳酸盐或氢氧化物,其水解溶液味苦、滑腻、有腐蚀性且在反应中呈碱性
- Dark brown forest soil was treated with radioactive aqueous solution of ~(75)SeO_2 at rate of 0.131 ppm and 1.631 ppm. 用~(75)SeO_2水溶液分别按0.;131ppm和1
- Methods: The fifteen rabbit ovaries were injected by the aqueous solution of the inknitric acid silver or Evans blue. 方法 用墨汁硝酸银水溶液或伊文氏蓝水溶液对 15只家兔的卵巢进行了灌注或注射。
- These anions were separated on a Vydac 302 IC quaternary ammonium phase column using aqueous solution of 0. 选用四硼酸钠及对紫外光有较强吸收的邻苯二甲酸作为流动相的主要成分,用以洗脱和分离无机阴离子。
- Results: Aqueous solution of Radix Slectellariae and Cortex Cinnamomi cassia was best. 结果:以黄芩、肉桂水溶液为最好。
- A clear colorless alkaline aqueous solution of calcium hydroxide, used in calamine lotion and other skin preparations and sometimes as an antacid. 石灰水水合钙的一种澄清时无色的石灰水溶液,可用于治疗皮肤病或其他制剂中,有时用作抗酸剂
- The nano-polyaniline was synthesized through the chemical oxidation method in an aqueous solution of acetone or diacetyl,separately. 在丙酮、丁二酮水溶液中采用化学氧化法合成纳米聚苯胺,并研究有机溶剂的含量对纳米聚苯胺导电性能的影响。
- As the concentration of ethanol inceased, the max absorption wavelength of the solutions of Perilla Color increased. 紫苏色素在乙醇-水溶液中的吸收光谱和色调均随乙醇浓度的变化而变化。