查询词典 Dichloroacetic

DCA, or dichloroacetic acid, is an analogue of acetic acid in which chlorine atoms replace two of the three hydrogen atoms on the methyl group.

DCA也叫二氯乙酸或二氯醋酸，是一种类似乙酸的化合物，但乙基团上有两个氢原子被氯原子所取代。

The photocatalytic degradation of dichloroacetic acid and trichloroacetic acid solution with titanium dioxide(TiO_2) thin films is investigated in the paper.

用常压化学气相沉积法镀TiO2薄膜，以紫外灯为光源，对二氯乙酸和三氯乙酸溶液进行光催化降解，并证实了此过程符合一级反应动力学方程。

The investigation on the concentration of four haloacetic acid s during conventional water treatment process in waterworks and in drinking waters in North China showed that there were only dichloroacetic acids and trichloroacetic acids in waters,and the proportion of TCAA was from 52% to 90%.

对北方某自来水厂常规水处理过程及饮用水体中的4种卤乙酸质量浓度进行了调查，结果表明水体中只存在二氯乙酸和三氯乙酸，其中三氯乙酸所占比例较大，为52%~90%；常规水处理工艺对二氯乙酸有较为明显的去除效果，去除率在15%以上，而对三氯乙酸没有明显的去除效果，但总体而言其对卤乙酸有10%左右的去除率；预氯化对卤乙酸的产生起主导性作用，该处产生的卤乙酸占整个氯化过程产生的卤乙酸总量的60%以上，因此常规工艺有必要从预氯化工艺着手加以改进，来更好的控制卤乙酸的产生量。

According to the intrinsic viscosity in dichloroacetic acid at 25℃, the molecular weight of polymers were estimated to be 20, 000～50, 000.Because of the thermal instability of the urea bond in molecular chain, all synthetic polymers began to degrade around 220℃, and had no melting point.

由于模拟聚合物中所含的脲键存在着热不稳定性，所有聚合物的热分解温度都在220℃附近（低于天然动物丝蛋白分解温度），并且所有聚合物样品在熔融之前已开始分解；另外只有分子量比较大的模拟聚合物P4有明显的玻璃化转变（T〓=107℃）。

The lyotropic liquid crystal morphology of polycaprolactone/ethyl cellulose blends in dichloroacetic acid has been studied by a polarizing light micrograph.

利用偏光显微镜研究了乙基纤维素与聚己内酯共混物在二氯乙酸中的溶致性液晶形态。

The critical concentrations in dichloroacetic acid were 0.005,0.015,0.035 and 0.050 respectively for chitin with the molecular weight 2.84×106,1.47×106,9.4×105 and 5.3×105 prepared from different sources.

甲壳素分子量为2.84×106、1.47×106、9.4×105和5.3×105时，在二氯乙酸中的临界浓度分别为0.005、0.015、0.035和0.050。

This study developed a new method on the determination of carcinogenic disinfection by-products-trace dichloroacetic acid and trichloroacetic acid in tap water by ion chromatography-electrospray-tandem mass spectrometry(IC-ESI-MS/MS).

建立了一种采用离子色谱-串联电喷雾四级杆质谱联用技术检测自来水中可致癌的饮用水消毒副产物二氯乙酸和三氯乙酸的方法。

In consideration of the competition of reactions between acetic acid, chloroacetic acid, dichloroacetic acid andchlorine, a competition factor was introduced for the improvement of fitting accuracy between calculated and experimental value of concentration.

结果表明，加入&竞争因子&的平行-连串宏观动力学模型能准确地反映己酸光氯化合成三氯乙酸的反应动力学规律。

Critical temperatures of lyotropic liquid crystalline formed in cellulose diacetate/trifluoroacetic acid and CDA/dichloroacetic acid solutions of different concentration were determined respectively using DSC technique.

用DSC技术分别测定了二醋酸纤维素在不同浓度的三氟醋酸和二氯醋酸溶液中形成的溶致液晶的临界温度，并绘制了相图。

Dichloroacetic acid ; ras gene ; DNA damage ; Randomized terminal linker-dependent PCR

二氯乙酸； ras基因； DNA损伤；依赖随机化末端连接物聚合酶链式反应

According to my definition, the Manchurian Candidate is an experimentally created dissociative identity disorder that meets the following four criteria

根据我的定义，满州候选人是一个创造分离身份混乱的实验，它符合下述的4条标准

I'd be chuffed to play at a World Cup, but I have many years ahead of me in the game so I hope to have more opportunities.

我会chuffed发挥在世界杯，但我有很多年的比赛在我前面，所以我希望有更多的机会。