Method for preparing 2, 3, 5-trimethyl hydroquinone diester.
一种制备2,3,5 -三甲基氢醌二酯的方法。
Catalytic synthesis of AMS cyclic dimer 1, 3, 3-trimethyl-1-phenyl indane.
甲基苯乙烯环状二聚体1,3,3 -三甲基- 1 -苯基茚满的催化合成方法。
Method for synthesizing N, N, N-trimethyl chitosan sulfate methyl ammonium.
一种N，N，N-三甲基壳聚糖硫酸甲酯铵的合成方法。
The tests on 2% octadecyl trimethyl ammonium chloride showed good result against the cabbage aphids.
绿清灵即2%十八烷基三甲基氯化铵可溶性粉剂，对蔬菜蚜虫具有较好的防治效果。
OBJECTIVE To prepare urease N-trimethyl chitosan chloride submicrospheres and study its characteristics.
目的制备尿素酶三甲基壳聚糖亚微球，并对其相关性质进行初步研究。
By means of gas chromatography, mass spectrometry and IR spectrum, the product was confirmed to be trimethyl borate.
结果利用气相色谱、色谱-质谱联用、红外光谱等分析表征手段，鉴定反应产物确实是硼酸三甲酯。
The gelling agent PDA is the copolymer of methacryloyloxyethyl trimethyl ammonium chloride (DMC) and acrylamide (AM);
胶凝剂PDA是甲基丙烯酰氧乙基三甲基氯化铵（DMC）和丙烯酰胺（AM）的共聚物；
OBJECTIVE:To explore the acute toxicity on mice and lipid-lowering effect on rats of N-trimethyl chitosan iodide (TMCI).
目的：研究碘化壳聚糖季铵盐（TMCI）对小鼠的急性毒性作用和对大鼠的降脂作用。
The synthesizing of dimethyl methyl phosphonic acid ester with trimethyl phosphite was catalyzed by methyl alkylbenzenesulfonate.
报道了以烷基苯磺酸甲酯催化异构亚磷酸三甲酯合成甲基膦酸二甲酯。
The results show that n, Ndipropynoxy methyl amine trimethyl phosphonate possesses high inhibiting efficiency and geometric blocking effect.
研究结果表明，环己基二炔氧甲基胺膦酸盐在盐酸介质中的缓蚀机理为覆盖效应。
The properties, applications, and process conditions for synthesis and separation of 2, 2, 4 -trimethyl - 1, 3 - pentanediol isobutyrate are introduced.
本文介绍了丁辛醇装置副产物异丁醛的缩合产品2,2,4-三甲基-1,3 -戊二醇单异丁酸酯的性质、用途、合成及分离工艺条件。
Aim to investigate the effect of low molecular N-trimethyl chloride chitosan (LMTC) on the growth of bovine vascular smooth muscle cells (BVSMCs) in vitro.
目的研究低分子壳聚糖季铵盐对血管平滑肌细胞增殖的影响。
In this study trimethyl amine was reclaimed from amination wastewater by using 001 hydrogenous strong-acid ion exchange resin. The recovery ratio is more than 90%.
本文采用001氢型强酸性阳离子交换树脂从胺化废水中回收三甲胺，回收率大于90%。
In this paper, three alkyl substituted dimethyl phosphonates have been synthesized by trimethyl phosphite with 1-Bromopentane, 1-Bromohexane and 1,2-Dibromoethane.
以溴戊烷、溴己烷、1，2-二溴乙烷和亚磷酸三甲酯为原料，分别合成了戊基、己基、溴乙基取代的三种膦酸二甲酯化合物。
Using trimethylamine and epichlorohydrin as raw materials, an active intermediate, glycidyl trimethyl ammonium chloride (GTA), was synthesized at ambient temperature.
以环氧氯丙烷和三甲胺为原料，常温下合成活性中间体失水甘油基三甲基氯化铵(GTA)。
Ultrafine WO_3 powders were prepared by colloidal chemical method using sodium tungstate, hydrochloric acid and palmityl trimethyl ammonium bromide as starting materials.
本文以钨酸钠、盐酸和十六烷基三甲基溴化铵为原料，采用胶溶法制备了WO_3超细粉体。
The synthesis, physico-chemical properties, absorption enhancing properties, cytotoxic evaluation and solid oral dosage forms of N-trimethyl chitosan chloride were summarized.
对氯化N-三甲基壳聚糖的制备、理化性质、促吸收机制、细胞毒性评价及制剂等方面作一综述。
Phenyl carboxylic acid was produced by oxidation of phenyl formaldehyde using hydrogen peroxide as oxidizing agent and amine hexadecane trimethyl P-W heteropoly acid as catalyst.
以过氧化氢为氧化剂，十六烷基三甲基钨磷杂多酸铵为催化剂，催化氧化苯甲醛制苯甲酸。
In this paper the condition and composition of the ternary complex for determination of cadmium with Cd-methyl thymol blue-cetyl trimethyl ammonium bromide have been put forward.
本文研究了用镉-甲基百里香酚蓝-溴化十六烷基三甲基铵三元络合物光度测定镉的反应条件和络合物组成。
This paper describes the analytical method using gas -chromatography for systems of temperature swing extraction with n-dodecane, 1, 3.5-trimethyl benzene and tri-ethylene glycol.
本文描述了变温革取法用三甘醇分离正十二烷和1,3,5—三甲苯时样品的气相色谱分析方法。
Traces of sulfate ions in etching solution for aluminum foil have been determined by turbidimetry in presence of cation surface activator-hexadecyl trimethyl ammonium bromide (CTMAB).
在阳离子表面活性剂——十六烷基三甲基溴化铵（CTMAB）的存在下，用比浊法对铝箔蚀腐液中微量硫酸根离子进行测定。
Poly(methyl(trifluoropropyl) siloxane)(PMTFPS) was prepared by bulk ring-opening polymerization of 1,3,5-trimethyl-trifluoropropyl cyclotrisiloxane, and crosslinked by peroxide compound.
由1，3，5-三（甲基三氟丙基）环三硅氧烷的阴离子本体开环缩聚合成了氟硅生胶，并对生胶进行过氧化物交联。
Silver nanoparticles with uniform diameters were obtained in dodecyl trimethyl ammonium bromide (DTAB) solution at room temperature under magnetic stirring through hydrazine reducing AgNO3.
常温磁力搅拌下，在十二烷基三甲基溴化铵(DTAB)体系中用水合肼还原硝酸银制备了颗粒细小均匀的纳米银粉。
An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.
介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。
MethodsUsing inhibiting tumor experiment, carbon clearance test and MTT method to observe the influences of low molecular N-trimethyl chitosan chloride on the solid tumor and immune system in mice.
方法采用抑瘤实验、碳粒廓清实验、MTT法观察低分子壳聚糖季铵盐对小鼠实体瘤和免疫系统的影响。
The experiments proved that the changes of materials adding order, the ratio of raw materials and the loading way of trimethyl amine were advantageous to improve the yield and purity of the product.
实验结果表明，改变投料顺序、投料比以及三甲胺的投料方式有利于提高产品的收率及纯度。
The experiments proved that the changes of materials adding order, the ratio of raw materials and the loading way of trimethyl amine were advantageous to improve the yield and purity of the product.
实验结果表明，改变投料顺序、投料比以及三甲胺的投料方式有利于提高产品的收率及纯度。
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