以三乙基铝(茶)和甲基溴为原料,在铁-锑络合物催化剂上反应合成了三甲基铝(TMA)。
Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
通过表面张力法研究了二甲基亚砜(DMSO)对十六烷基三甲基溴化铵(CTAB)胶束形成的影响。
The effect of dimethyl sulphoxide(DMSO)on micelle conformation of hexadecyltrimethylammonium bromide(CTAB)was studied by means of surface tension.
随十六烷基三甲基溴化铵浓度的升高分离度呈非线性下降。
Nonlinear decline of resolution is found when concentration of cetyltrimethylaminiumbromide increase.
采用田间试验方法,研究了在烟草苗床上的甲基溴替代技术。
A test was done to evaluate the possibility of substitution of methyl bromide in tobacco field.
如果你的电脑已不到256甲基溴记忆你想加入更多的考虑。
If your computer has less then 256 MB of memory you may want to consider adding more.
所用滴定剂为十六烷基三甲基溴化铵,指示电极为氟硼酸根离子选择电极。
Cetyltrimethylammonium bromide is used as a titrant and a fluoroborate ion-selective electrode as an indicator electrode.
不透气膜(VIF)作为一种减少甲基溴施用量的过度性替代技术也是可行的;
The VIF was feasible as a transitional technology to reduce the applied dosage of methyl bromide;
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。
Ultrafine WO_3 powders were prepared by colloidal chemical method using sodium tungstate, hydrochloric acid and palmityl trimethyl ammonium bromide as starting materials.
2003年在山东省青州市温室中进行了2次减量甲基溴、覆盖不透膜(VIF膜)土壤消毒试验。
Two times experiments of dosage reduction of methyl bromide(MB) and covering virtually impermeable film(VIF) were carried out in Qingzhou city(Shandong province, China) from 2001 to 2003 year.
以大豆油和蔗糖为原料,十六烷基三甲基溴化铵为相转移催化剂,采用两步法合成大豆油蔗糖多酯。
Soybean sucrose polyester was synthesized with soybean oil and sucrose catalyzed by phase-transfer catalyst of cetyltrimethylammonium bromide (CTAB) in two-step method.
研究了十六烷基三甲基溴化铵(CTAB)和十二烷基磺酸钠(AS)复配体系在稀溶液区的相行为。
The phase behavior of cetyltrimethylammonium bromide(CTAB) and sodium dodecyl sulfonate(AS) mixed system in dilute aqueous solution region has been studied.
研究了由十六烷基三甲基溴化铵(CTAB)改性制成的有机沸石对水体中铬酸根的吸附性能及吸附机制。
The adsorption of chromate on zeolite modified by cation surfactant CTAB and its mechanism were investigated.
采用正丁醇-氢氧化钠反应体系,以十六烷基三甲基溴化铵为相转移催化剂,制得脱乙酰度为92%的壳聚糖。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
以十六烷基三甲基溴化铵为模板剂,正硅酸乙酯为硅源,在碱性条件下合成了介孔分子筛m CM - 41。
The mesoporous molecular sieves MCM-41 is synthesized with CTAB as template and TEOS as silica source in the basic conditions.
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。
Silver nanoparticles with uniform diameters were obtained in dodecyl trimethyl ammonium bromide (DTAB) solution at room temperature under magnetic stirring through hydrazine reducing AgNO3.
在弱还原剂条件下,十六烷基三甲基溴化铵诱导生成了三角形片状纳米银,但是在强还原剂存在条件下生成了粒状纳米银。
Cetyltrimethylammonium bromide induced to form the nanosized silver triangle plates in a weak reducing environment, and to form the grained silver powders in a strong reducing condition.
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。
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).
同时,我们还以电导法和稳态荧光法研究了多巴胺与阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)胶束体系的相互作用。
We also studied the interaction between dopamine and the cationic surfactant sodium dodecyl sulfate (CTAB) by the methods of conductivity and the steady state fluorescence.
通过表面张力法和负染色电镜法分别从两个方面研究了二甲基亚砜(DMSO)对十六烷基三甲基溴化铵(CTAB)胶束形成的影响。
The effect of dimethyl sulphoxide(DMSO)on micelle conformation of hexadecyltrimethylammonium bromide(CTAB)was studied by means of surface tension and negative staining TEM measurements.
研究十六烷基三甲基溴化铵(CTAB)对DNA分子热稳定性的影响对于认识阳离子表面活性剂与DNA二者之间的相互作用具有重要的意义。
Investigating the effects of cetyltrimethylammonium bromide (CTAB) on the thermal stability of DNA is of importance in understanding interactions between cationic surfactants and DNA.
以十六烷基三甲基溴化铵(CTAB)为表面活性剂,以1,3,5 -三甲基苯(TMB)为辅助剂,合成出了不同孔径的MCM - 41介孔分子筛。
The molecular sieve MCM-41 with different pore diameters is synthesized with Cetyltrimethylammonium bromide (CTAB) as the liquid crystal template and 1, 3, 5-trimethylbenzene (TMB) as assistant agent.
三甲基甲硅烷基炔丙基溴的反应产物的产率为71%到84%。
The yields of products for the reaction of trimethylsilyl propargyl bromide are 71 to 84%.
溴化后与2-氨基-5-甲基吡啶反应生成咪唑吡啶。
This is brominated and reacted with 2-amino-5-methylpyridine to give the imidazopyridine.
并与新洁尔灭(十二烷基二甲基苄基溴化铵)进行了比较。
Comparison was also made with dodecyl dimethyl benzyl ammonium bromide.
提出以羟甲基改性尼龙- 6织物与反应型有机磷系、溴系阻燃剂进行耐久性阻燃整理的新方法。
A new technique for the durable flame retarding treatment of hydroxymethyl nylon 6 textiles with reactive flame retardants is put forward.
以对甲酚为原料经溴化、水解、甲氧基化和甲基化4步反应合成药物中间体3,4,5-三甲氧基苯甲醛,总收率达53。
The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.
采用四氮甲基唑蓝比色法、溴乙锭荧光法检测肺细胞的生长情况和DNA交联的形成。
The cytotoxicity and DNA cross links of the cells were detected with MTT assay and ethidium bromide fluorescence assay.
十六烷二甲基苯氧乙基溴化铵的乳化能力、起泡力和泡沫稳定性都比较弱,具有一定的消泡和抑泡作用。
The emulsibility, producing bubble ability and the foam stability for PDPB are weaker, and it has definite effect on disappeared and restrained bubbles.
十六烷二甲基苯氧乙基溴化铵的乳化能力、起泡力和泡沫稳定性都比较弱,具有一定的消泡和抑泡作用。
The emulsibility, producing bubble ability and the foam stability for PDPB are weaker, and it has definite effect on disappeared and restrained bubbles.
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