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- acidic silica gel 酸性硅胶
- The crude oil is chromatographed over silica gel. 粗制油状物用硅胶进行色谱分离。
- The catalytic nitration of the different aromatic compounds was studied on solid acidic catalyst (sulfuric acid-adsorbing silica gel). 研究了固体酸催化剂(硅胶吸附浓硫酸)催化不同种类芳族化合物的硝化反应。
- The purity of isoquercitrin was isolated with a silica gel column. 酶反应产物用硅胶柱层析法提取,可以得到高纯度的异槲皮甙。
- The handpiece cable is made from silica gel tube,soft and durable. 换能器尾线采用进口材料硅胶管，柔软耐用。
- It was indicated that adsorption of benzoic acid by silica gel well fit the stoichiometric displacement mode for adsorption(SDM-A). 发现苯甲酸能非常好地服从计量置换吸附模型(SDM-A)。
- The synthesis of i amyl acetate from i amylic alcohol and acetic acid using silica gel carrier acid as catalyst is reported. 以乙酸和异戊醇为原料,采用硅胶载体酸为催化剂合成乙酸异戊酯。
- Trimethylsilyl cyclopropyl ethers can react with the silica gel to form the cyclopropanols when Lewis acid such as ZnX2 existed. 环丙烷基硅醚在卤化锌的作用下能够与硅胶反应生成环丙基醇。
- Sampled acid coated silica gel be put in a self - designed reflux column,then the sampled material be stripped off and analyzed with gas chromatograph. 将采样后的涂酸硅胶置于自行设计的回流提取装置内解吸,采用色谱仪分析。
- All seals of this machine use the thermostable silica gel (food grade). 该机所有密封件均采用耐高温硅胶件（食品级）。
- The colloidal particle is the polycondensate of hydrated silica gel (multi-silica acid), belongs to a non-crystalline-state substance. 胶体粒子是水合状态硅胶（多硅酸）的缩聚物，属非晶态物质。
- Methods:Silica gel tube adsorption and solvent desorption were used for sampling of methacrylic acid and analysis was performed by HPLC. 方法:以硅胶管采集空气中甲基丙烯酸,用甲醇解吸后高效液相色谱测定。
- There is no possibility to form silica gel in the hard-ened waterglass. 硬化的水玻璃实际上是失水的高模数水玻璃，不可能有硅凝胶生成。
- The specimen was extracted by the macroreticular resin and silica gel column. 样品经大孔树脂柱、硅胶柱分离，然后用TLC进行鉴定合并。
- You may reactivate the silica gel by desorbing the water through heating. 硅胶吸附水份后可通过脱附方式除掉水份而再生。
- And it is crucial to increase the diameter of said particle for the preparation of high concentration and low viscosity acidic silica sol. 结果表明,随着二氧化硅粒径的增加,酸性硅溶胶的稳定性及粘度均得到较好的改善,提高纳米二氧化硅的粒径对制备高浓度、粘度的酸性硅溶胶有十分重要的作用。
- The auxiliaries to absorb proteins effectively include tannic acid (removal rate as 52.8%), carrageenin (removal rate as 33.5%), and Zhe No.1 silica gel (removal rate as 33.2%). 吸附酒体蛋白质比较有效的助剂有单宁酸（去除率为52.;8%25）、卡拉胶（去除率为33
- The auxiliaries to absorb proteins effectively include tannic acid (removal rate as 52.8 %),carrageenin (removal rate as 33.5 %),and Zhe No.1 silica gel (removal rate as 33.2 %). 吸附酒体蛋白质比较有效的助剂有单宁酸(去除率为52.;8%25)、卡拉胶(去除率为33
- Novel Ti-doped silica gel adsorptive materials were prepared by treating ceramic fiber paper with the sequential impregnation of water glass and the aqueous solution of acidic titanium salt. 以陶瓷纤维纸为基材,依次经水玻璃、酸性钛盐溶液浸渍制得新型钛掺杂硅胶吸附材料。
- The alternative use of buffered silica gel resulted in modest hydrolysis (~5-10%) of the imine. 选用温和的水解导致缓冲硅胶(~5-10%25)的亚胺.
