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The results showed that the TCA/acetone method is the most suitable protein extraction method for wheat leaves.

因此,三氯乙酸/丙酮法是提取小麦叶片蛋白的较优方法。

The carboxymethyl soybean polysaccharides had been synthesized and the mechanical strength, solubility, bacteriostasis of algin, algin carboxymethyl soybean polysaccharides alloy membrane had been studied.

用氯乙酸作为羧甲基化试剂合成了羧甲基大豆多糖;测定了羧甲基大豆多糖、褐藻胶、褐藻胶-羧甲基大豆多糖合金膜的机械强度、溶解性;并对其肠溶性、抑菌性也作了探讨。

When trichloroacetate reacted with secondary amine , carbamate or tertamine was obtained in different conditions.

三氯乙酸酯与二级胺反应,在不同条件下得到不同的产物。

Therefore, Chinese Chloroacetic acid industry needs to improve present production technics, to increase production capacity and equipment standard, develop and take advantage of newfashioned efficient catalyst, make better manners and methods for controlment, to reinforce recycle and synthetically utilize mother liquor,so as to raise product quality and level, reduce production cost, decrease environment pollution, increase economic benefits.

因此,中国氯乙酸行业要改进现行生产工艺,提高生产规模与装备水平,开发利用新型高效催化剂,改进控制手段与方式,加强母液的回收与综合利用,从而提高产品质量和档次,降低生产成本,减少环境污染,增加经济效益。

Results: When the quantity of monochloroacetic acid was 0.3 mol, The preferable conditions were 0.42 mol dimethylamine, reaction temperature about 40℃, 2-hour reacton time and 50 ml dilute water.

结果 当氯乙酸投料量为0.3mol时的最佳反应条件为二甲胺0.42 mol,缩合温度40℃左右,缩合时间2h,稀释水量50ml。

Cryotherapy with liquid nitrogen or cryoprobe, repeatevery 1-2 weeks; or podophyllin, repeat weekly; or TCA 80-90%,repeat weekly; or surgical removal.

液氮或冷刀冷冻治疗,1-2周后重复一次,或是普达非洛每周涂一次;80-90%的三氯乙酸每周涂一次或是手术切除。

Carboxymethyl dimethyl sulfonium chloride as a novel aquatic feed attractant was synthesized with chloroacetic acid, methyl sulfide and in solvent free system.

运用无溶剂合成方法,利用较低成本的氯乙酸为原料与二甲硫醚反应,合成新型水产动物诱食剂——氯化羧甲基二甲基锍。

Study on PS Ⅱ electron transport indicates another inhibition cite of chloroacetate at the oxidation side of PS Ⅱ.

对PSⅡ氧化侧电子传递的研究表明氯乙酸盐在PS Ⅱ氧化侧尚有第2个抑制位置。

Isoamyl chloroacetate is synthesized from chloroacetic acid and isoamyl alcohol with mordenite as catalyst and benzene as water carrying agent under the irradiation of microwave.

研究了微波辐射作用下丝光沸石催化氯乙酸与异戊醇的酯化反应。

The distillation column with a single photochlorination reactor was built in this paper, which is used in the laboratory study. In light initiation, the semi-continuous operation was applied to study the influence of the chlorine flow, the reflux and the height of the packing on photochlorination of acetic acid. Crude MCA with a purity of 90% or more was attained and the feasibility of this technology was proved.

本文建立了适合实验室研究的背包式光氯化反应精馏耦合装置,采用半连续操作的方法,在光引发条件下,考察了氯气流量、回流量和填料高度对乙酸光氯化反应的影响,得到了含量达90%以上的氯乙酸粗品,证实了工艺的可行性。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力