• 以三乙基铝(甲基为原料,-锑络合物催化剂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.

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  • 通过表面张力法研究了DMSO十六烷基三甲基化铵(CTAB束形成影响

    The effect of dimethyl sulphoxide(DMSO)on micelle conformation of hexadecyltrimethylammonium bromide(CTAB)was studied by means of surface tension.

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  • 随十六烷基三甲基溴化铵浓度升高分离度呈非线性下降

    Nonlinear decline of resolution is found when concentration of cetyltrimethylaminiumbromide increase.

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  • 采用田间试验方法,研究了烟草苗床上甲基替代技术。

    A test was done to evaluate the possibility of substitution of methyl bromide in tobacco field.

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  • 如果电脑不到256甲基记忆加入更多考虑

    If your computer has less then 256 MB of memory you may want to consider adding more.

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  • 所用滴定剂十六烷基三甲基化铵,指示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.

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  • 不透气(VIF)作为一种减少甲基施用量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;

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  • 本文以钨酸盐酸十六烷基甲基溴原料采用溶法制备了WO_3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.

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  • 2003山东省青州市温室进行2减量甲基覆盖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.

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  • 豆油蔗糖为原料,十六烷基三甲基化铵为转移催化剂,采用两步法合成大豆油蔗糖多

    Soybean sucrose polyester was synthesized with soybean oil and sucrose catalyzed by phase-transfer catalyst of cetyltrimethylammonium bromide (CTAB) in two-step method.

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  • 研究十六烷基三甲基溴化铵CTAB十二烷基磺酸AS)复配体系溶液区的相行为

    The phase behavior of cetyltrimethylammonium bromide(CTAB) and sodium dodecyl sulfonate(AS) mixed system in dilute aqueous solution region has been studied.

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  • 研究十六烷基三甲基溴化铵(CTAB改性制成的有机沸石水体中铬酸根的吸附性能吸附机制

    The adsorption of chromate on zeolite modified by cation surfactant CTAB and its mechanism were investigated.

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  • 采用正丁醇-氢氧化钠反应体系,以十六烷基三甲基化铵转移催化剂脱乙酰为92%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.

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  • 十六烷基三甲基溴化铵模板剂,正硅酸乙酯为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.

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  • 常温磁力搅拌十二烷基甲基溴(DTAB)体系中用水合肼还原硝酸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.

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  • 还原剂条件下,十六烷基三甲基化铵诱导生成了三角形片状纳米,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.

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  • 阳离子表面活性剂——十六烷基三甲基溴CTMAB存在下,铝箔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).

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  • 同时我们电导法稳态荧光法研究多巴胺阳离子表面活性剂十六烷基甲基溴CTAB)胶束体系相互作用。

    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.

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  • 通过表面张力法染色电镜法分别从两个方面研究了亚砜(DMSO十六烷基三甲基化铵(CTAB束形成影响

    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.

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  • 研究十六烷基三甲基溴(CTAB)DNA分子稳定性影响对于认识阳离子表面活性剂DNA二者之间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.

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  • 十六烷基三甲基溴(CTAB)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.

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  • 甲基甲硅烷基丙基反应产物的产71%84%。

    The yields of products for the reaction of trimethylsilyl propargyl bromide are 71 to 84%.

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  • 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.

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  • 新洁尔灭(十二烷基甲基苄基化铵)进行了比较

    Comparison was also made with dodecyl dimethyl benzyl ammonium bromide.

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  • 提出以羟甲基改性尼龙- 6织物反应型有机磷阻燃剂进行耐久性阻燃整理方法

    A new technique for the durable flame retarding treatment of hydroxymethyl nylon 6 textiles with reactive flame retardants is put forward.

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  • 甲酚原料经化、水解氧基化甲基4反应合成药物中间体3,4,5-三甲氧基苯甲醛,收率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.

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  • 采用四氮甲基唑蓝比色乙锭荧光检测细胞生长情况DNA的形成。

    The cytotoxicity and DNA cross links of the cells were detected with MTT assay and ethidium bromide fluorescence assay.

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  • 十六烷甲基苯氧乙基化铵乳化能力起泡泡沫稳定性比较弱具有一定泡和作用

    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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  • 十六烷甲基苯氧乙基化铵乳化能力起泡泡沫稳定性比较弱具有一定泡和作用

    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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