查询词典 formaldehyde solution

N,N'-ethylenediamine diacetic acid was prepared by condensation of ethylenediamine, formaldehyde and potassium cyanide. Then 2-oxo-1-piperazine acetic acid was prepared from N,N'-ethylenediamine diacetic acid. In addition, 2-oxo-1, 4-piperazine diacetic acid(3-KP) was prepared from 2-oxo-1-piperazine acetic acid with chloroacetic acid.

本文用乙二胺、甲醛和氰化钾合成了N，N′—乙二胺二乙酸，然后由N，N′—乙二胺二乙酸合成了2—氧—1—哌嗪乙酸，再由2—氧—1—哌嗪乙酸和氯乙酸合成了2—氧—1，4—哌嗪二乙酸(3-KP)。

Finally, the formaldehyde content of the raw material, semi-product and final beer was determined by the method of diacetyl distillation instrutment in this paper.

本文比较了甲醛测定的几种方法，例如乙酰丙酮法、AHMT法以及液相色谱法，最终采用AHMT法对啤酒生产的原料、半成品及成品啤酒中的甲醛含量进行了测定。

A new cationic polyelectrolyte has been synthesized by the modification of polyacrylamide with formaldehyde and dicyanodiamide.

用甲醛和二氰二胺改性聚丙烯酸胺，制得新型阳离子聚电解质PAm·MG，对PAm·MG的合成和表征进行了研究。

The adoption of indoor air quality testing instruments, is currently the only site testing at the same time indoor formaldehyde, ammonia, stupid, a stupid, stupid dimethoxy, TVOC (Total Volatile Organic Compounds) and other harmful gases apparatus.

公司采用的室内空气质量检测仪，目前国内唯一的可同时现场检测室内甲醛、氨、笨、甲笨、二甲笨、TVOC等有害气体的仪器。

From the point view of product distribution, conversion of dimethyl ether and energy consumption, with RCD plasma DME conversion was higher and was hardly affected by the residence time of dimethyl ether, and hydrogen, carbon monoxide and unsaturated hydrocarbons with RCD plasma were more than those with DBD plasma.There was no liquid product with RCD plasma, but the liquid product obtained with DBD plasma consisted of aldehydes, alcohols and methoxy-containing organic compounds, for instance, formaldehyde, methyl alcohol, dimethoxy ethane and so on.Moreover, most compositions of liquid product were methoxy-containing compounds, and the liquid product selectivity was as high as 32.23%.However, energy consumption for the reaction with DBD plasma was more than that with RCD plasma.

从产物分布、转化率及能耗上看，利用RCD所获得的二甲醚的转化率高，几乎不受二甲醚停留时间的影响，且氢气、一氧化碳和不饱和烃的含量大，几乎没有液相产物，而利用DBD能获得较多的液相产物，包括一些醇、醛和含有甲氧基的有机化合物，如甲醛、甲醇和二甲氧基乙烷，且大部分组成都是含有甲氧基的化合物，液相产物的选择性高达32.23％，但是能耗较大。

Methods 151 cars used for different periods of time were selected and the concentrations of formaldehyde,benzene,toluene,dimethylbenzene and TVOC were detected.

方法选择使用不同年限的151辆小汽车，分别测定车厢空气中甲醛、苯、甲苯、二甲苯、TVOC的浓度，同时对驾驶人员的不良反应进行调查。

Methods To detect benzene,methylbenzene, dimethylbenzene ,and formaldehyde levels in indoor air of 48 rooms decorated in different seasons.

方法在春夏季(4~9月)和秋冬季(1~3月，10~12月)选择装修完毕3个月左右尚未入住的居室48户，检测室内空气中的苯、甲苯、二甲苯和甲醛浓度，并进行比较。

Results The exceed standard rates of benzene, methylbenzene, dimethylbenzene, formaldehyde in indoor air were 11.39%, 14.58%, 7.64% and 38.17% respectively.

结果 室内空气中苯、甲苯、二甲苯和甲醛的超标率分别为11.39%、14.58%、7.64%和38.17%。

Methods The levels of formaldehyde, benzene, toluene and dimethylbenzene indoors at different time after decoration were determined with methods described in GB11737 and the dwellers' adverse reaction with a given questionnaire was surveyed????

选择装饰竣工后不同时期的居室，分别测定室内空气中甲醛、苯、甲苯、二甲苯的浓度，同时对居留者的不良反应进行调查。

The effects of formaldehyde on estrous cycle and ovary of female mice［J］.

甲醛对雌性小鼠动情周期及卵巢的影响［J］。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼