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This method has the advantages of high yields and easiness to handle.

近年来 ,离子液体作为一种清洁的溶剂和新型催化剂体系得到了各国催化界和石化企业的青睐[1] 。

A two-step method of releasing and inner ebullition was used to intensify the process of extracting berberine in the plant of Rhizoma coptidis.

采用解吸?内部沸腾两步法强化植物有效成分提取,首先用少量低沸点解吸剂饱和植物组织,以使组织内部的有效成分充分解吸,然后快速加入温度高于解吸剂沸点的溶剂,使植物组织内部的解吸剂迅速被加热至沸腾,强化传质过程。

Adaptive decompressing status monitor based on MC68HC08;2. A new method was put forward for extracting the activity components in the plant by decompressing inner ebullition.

减压内部沸腾法是用少量低沸点解吸剂润湿被提取物料粉末,使其中的有效成分充分解吸,然后加入一定温度的热提取溶剂并迅速减压,使渗透到植物组织内部的解吸剂首先沸腾,强化提取过程。

Since electroanalysis has inherent advantages such as lower detection limit and wider dynamic range, it can be used to investigate the electrochemical behaviors of biomolecules.

离子液体具有特殊的理化性质,在电分析化学领域它既可以作为溶剂和支持电解质,又可以作为粘合剂和固定材料用于制备修饰电极。

Sandwich type cell, parallel syringe and capacity measuring system used for the investigation of BLM have been developed and computer controlled electroanalysis system CS-1087 has been installed successfully.

成功地研制出研究BLM的电解池,平行注射器和电容仪等,安装了计算机控制的电分析系统CS-1087,确立了BLM成膜方法,并选定了成膜溶剂

Uranium solution is obtained electrolytically by reducing uranyl ion on mercury cathode. The effect of the addition of various aminopolycarboxylic acids (such as EDTA, DTPA, CyDTA and TTHA) and organic water-miscible solvents (such as CH3OH, C2H5OH and CH3COCH3) on the stability of ura-nium in air has been investigated. The absorption spectra of uraniumand uraniumin 1 mol/l and 9mol/l hydrochloric acid solutions are examined.

本文采用汞阴极电解还原法制备了铀溶液,研究了在盐酸介质中各种氨羧络合剂乙二胺四乙酸二钠、二乙三胺五乙酸、1,2-环已烷二胺四乙酸、三乙基四胺六乙酸和水溶性有机溶剂甲醇、乙醇和丙酮的存在对铀稳定性影响,测定了在不同盐酸浓度中铀和铀的吸收光谱。

Procedure— Where the individual monograph specifies that the water content is to be determined by Method Ib, transfer 35 to 40 mL of methanol or other suitable solvent to the titration vessel, and titrate with the Reagent to the electrometric or visual endpoint.

规程---当各论规定使用方法Ib测定水的含量时,转移35~40ml的甲醇或者其他合适的溶剂至滴定容器中,用卡尔试剂滴定,以永停法或视觉观察终点。

Procedure— Unless otherwise specified, transfer 35 to 40 mL of methanol or other suitable solvent to the titration vessel, and titrate with the Reagent to the electrometric or visual endpoint to consume any moisture that may be present.

操作---除另有规定外,转移35~40ml的甲醇或其他合适的溶剂至滴定容器中,以永停法或视觉指示终点,用卡尔试剂滴定可能存在的水汽(所消耗体积忽略不计,因为不会代入到公式计算),快速加入测试样本,混匀,然后再次用卡尔试剂滴定到终点。

Film or paper surface dirty, and wrapped it into the dust or clear plastic mulch films after the crease or relaxation phenomena, film hemming switched to a new membrane drying temperature is too high, adhesive surface crust adjust oven temperature, clear crusts partⅱ thermotolerance cohesion and not enough use better glue wrinkle of polymer-coated film transfer after the roll is not the proper balance of films at both ends are inconsistent or wave; adjustment layer of polymer-coated machine too thick, solvent evaporation incomplete, viscosity, pressure drum extrusion, paper (Business card printing and membership card making products) and films between slide to adjust the film covering technology electrothermic roll and rubber roller ends is not plain, pressure is inconsistent, ranging from the adjustment of the linear speed of the machine after the temperature inside the plastic mulch film covering the subject in yellow glue resin particularly resin or additives not resistant to ageing, in the light, heat, under the influence of ultraviolet radiation, chemical change, build the pigments should be switched to a new glue

薄膜或纸张表面不干净,裹入灰尘或杂质清除后再行覆膜薄膜有折皱或松驰现象,薄膜卷边换用新膜干燥温度过高,粘合剂表面结皮调整烘道温度,清除结皮胶的粘接力和耐热性不够换用更好的胶水覆膜后起皱薄膜传送辊是否不平衡;薄膜两端松紧不一致或波浪边;调整覆膜机器胶层过厚,溶剂蒸发不彻底,影响了粘度,受压力滚筒挤压,纸张与薄膜之间产生滑动调整覆膜工艺电热辊与橡胶辊两端不平、压力不一致、线速度不等调整覆膜机器覆膜后易变黄胶水中的主体树脂特别是一些增粘树脂或助剂不耐老化,在光、热、紫外线的影响下,发生化学变化,生成有色物质应换用新胶水

Results: The prepared AmB-PBCA nanoparticle had a regular spherical or elliptic surface, with a mean diameter of (69.01±28.56) nm. The curve of standard AmB was linear within the range of 1.12-5.60μg/ml: D405=0.1634c+0.0066 (r=0.9993). The average recovery of AmB-PBCA-NP was 99.93%, showing the solution of AmB-PBCA-NP was stable within 12 h. The nanoparticles showed a sustained drug release in vitro within 24 h. The optimized recipe was: DextranT-70 stabilizer without sodium deoxycholate, with a mean encapsulation rate of 56.10% and a drug loading rate of 82%.

结果:制备的AmB-PBCA-NP外观呈圆或类圆形,平均粒径(69.01±28.56)nm,分散均匀;AmB标准品在1.12~5.60μg/ml范围内的线性回归方程为:D405=0.1634c+0.0066,r=0.9993,AmB-PBCA-NP的平均回收率为99.93%,其溶液在12h内稳定性较好;体外释放实验表明24h体外释放具有一定的缓释性;实验发现最优化的处方为稳定剂采用DextranT-70,且不加助溶剂脱氧胆酸钠,其包封率及载药量均比较高,分别为56.10%、82%。

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