查询词典 dioxane

Traces of dioxane, a human carcinogen, were found in 60% of shampoos tested.

同时有可能还加入了会对宝宝的大脑产生影响的致癌物质。dioxane在60%的洗发水中都能发现。

Dioxane has been found in at least 27 of the 1,662 current or former NPL sites.

在所有1662处当前或以前的重度污染区中，检测到1，4-二氧杂环乙烷污染的至少27处。

For each temperature,the compositions of solvent mixture are 0,5,10,15,20,25 and 30% of dioxane.

每个温度有7个不同的二氧六圜和水的成分(0%，5%，10%，15%，20%，25%，30%的二氧六圜)，因此得到49个速度常数。

The dioxane solution was concentrated by evaporation and the remaining oil was distilled in vacuo on a water bath.

在二氧六环的解决办法是通过蒸发浓缩和剩余油是在真空中蒸馏水上热水澡。

FDA has stated that the 1,4 dioxane levels found in their monitoring of personal care products and cosmetics "do not present a hazard to consumers."

FDA已经表示1，4 –二氧杂环己烷存在于在其监控范围内的化妆品和个人护理用品的水平"对消费者不构成危害"。

In experiment dioxane was choosed as the best solvent for extraction of pigment and capsaicin from Capsicum frutescens L .

以贵阳的干红辣椒为原料，选用二氧六环为最佳提取溶剂。

The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed.

利用二甘醇为原料，以对甲苯磺酸为催化剂合成了 1 ，4 -二氧六环。

The circular dichroism spectra of soluble CSL in the presence of dioxane showed that dioxane made the αhelicity of the CSL increase.

CSL在二氧六环介质中的CD谱的变化表明：二氧六环使CSL分子中的α-螺旋含量有所增加。

The main production and the fire extinguishers matching accessories: dry powder dusting of assembly, dioxane high-pressure nozzle assembly, dioxane elbow assembly, was clean asbestos, insurance sales, iron leather, Qian Feng, a peg, and Kind of screw joints, all kinds of rubber seals, etc..

主要生产与灭火器配套的消防配件：干粉喷粉管总成，二氧高压喷管总成，二氧弯管总成，无尘石棉被，保险销，铁皮套，铅封，挂具，及各种螺丝接头，各种橡胶密封圈等。

Iminodiacetic acid and aspartic acid reacting with t-butyloxycarbonyl anhydride in the basic solvent system of 1,4-dioxane-water gave better yields than those from conventional t-BuOH/H 2O system method,while glutamic acid in both solvent systems of 1,4-dioxane-water and tetrahydrofuran-water also gave better yield.

其中Boc酐法反应条件温和，操作简便，试剂易得且经济，是实验室制备Boc保护的氨基酸的常用方法。常规Boc酐法多采用叔丁醇水和四氢呋喃水的溶剂体系。我们用常规Boc酐法制备Boc 亚氨基二乙酸时，多次重复，收率总是低于 5 0 %，对天冬氨酸和谷氨酸进行Boc化时也有类似情况。

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。