adsorption and desorption processes of external source copper ions using two soils in the absence and presence of o-phenylenediamine

measurement of o-phenylenediamine in industrial wastewater

工业废水中邻苯二胺的测定

manufacture of glucose oxidase electrode immobilized in poly o-phenylenediamine film

聚邻苯二胺嵌合葡萄糖氧化酶电极的研制

catalytic fluorimetric determination of trace iron using o-phenylenediamine

邻苯二胺催化荧光法测定痕量铁

studies on oxidation reaction of o-phenylenediamine catalyzed by hemin in organic media

有机介质中氯化血红素催化邻苯二胺氧化反应的研究

electric field enhancing adsorption of o-phenylenediamine by activated carbon

电场强化活性炭吸附邻苯二胺的研究

the microcalorimetric studies on the inhibition kinetics of enzyme-catalyzed reaction ── fluoride ion inhibiting laccase-catalyzed oxidation reaction of o-phenylenediamine

酶促反应抑制动力学的微量热法研究&氟离子对漆树漆酶催化氧化邻苯二胺的抑制

if they're negative and self-critical, learn to do thought-stopping as negativity will only make you more stressed out.

如果你消极，自我批评，学习思维停顿的消极情绪只会增加你的压力。

it was found out from our research that: there are more subaerial algae in hayland that is under protective condition ( 28 species); less species in pyric grassland; while least species of algae distributed in heavy grazing grassland ( 10 species).

研究结果表明：在保护状态下的割草草场分布有较多的亚气生藻类（28种），其次是火烧草场，而重牧状态下的草场亚气生藻类的种类最少，只有10种。

a new process with industrialization value for manufacture of chloroform and n, n-dimethylformamide has been studied, utilizing chlorine oils and 40% aqueous solution of dimethylamine as raw materials.

研究了一条以氯油和40%二甲胺水溶液为原料合成氯仿和二甲基甲酰胺（DMF）的具有工业开发价值的新工艺路线。

it is recommended that one step process of dimethylamine carbonylation should be adopted by manufacturer in order to reduce the production cost and promote product quality and elevate market competition of products.

建议生产厂家采用一步法生产，以降低成本，提高产品质量，从而提高其市场竞争力。

pech-amine is one of the cationic modification agents which come from the reaction of dimethylamine and polymer of epichlorohydrin under the condition of 95 ℃.

聚环氧氯丙烷胺化物PECH-amine是由环氧氯丙烷的聚合物与二甲胺在95℃条件下反应得到的阳离子改性剂。

linen was chemically modified by the synthetic product of polyepichlorohydrin and dimethylamine, so as to improve its dye uptake and dyeing behaviour.

利用聚环氧氯丙烷与二甲胺的合成产物对亚麻织物进行化学改性，以提高亚麻织物的上染率，改善其染色性能。

a study was made on the effect of dimethylamine ( dma) as impurity in butadiene on the synthesis and properties of medium vinyl polybutadiene rubber.

本工作研究了二甲胺对聚合速度、转化率、高聚物的微观结构、特性粘数及分子量分布的影响。

the results showed that adsorbent r-3 with 10% crosslink degree and dimethylamine group performed the most appropriate power to purify triterpenoid acids.

结果表明交联度为10%、引入二甲胺的R-3树脂对三萜酸的吸附选择性最佳。

study on the kinetics of the reactions between tris ( alkylxanthato) cobalt(ⅲ) and dimethylamine by high-performance liquid chromatography

高效液相色谱法对烷基黄原酸合钴（Ⅲ）与二甲胺反应动力学的研究

preparation of alkyl dimethylamine

烷基二甲基胺的研制

the results showed that polymerization temperature, molar ratio of epichlorohydrin and dimethylamine, and polymerization time all had an optimum value under certain polymerization conditions.

结果表明：在一特定聚合体系下，交联剂加入量、反应温度、环氧氯丙烷和二甲胺摩尔比、聚合时间等因素对于聚合物的阳离子度和分子量都存在一最佳值。

the syntheses of phenol-formaldehyde resin modified with dimethylamine or isopropylamine under suitable conditions were conducted.

利用二甲胺和异丙胺在适宜的条件下对酚醛树脂进行改性，得到了胺改性酚醛树脂。

in the product solution at the end period. methyl formate and dimethylamine are controlled at equal molar feeding.

反应过程控制甲酸甲酯与二甲胺等摩连续进料。

the results showed that the selectivity for dimethylamine was over 60% at the methanol conversion of 98.5%.

结果表明：该催化剂具有优良的转化活性和二甲胺选择性。