1) NO_2 determination
NO2测定
2) NO_2
NO2
1.
In Yufa of Beijing,the pollutants including O_3,NO_2,SO_2 in atmospheric boundary layer were monitored in August and September of 2006 under different weather conditions.
介绍了自行研制的车载差分激光雷达AML-2探测原理及技术参数,于2006-08、2006-09在不同天气因素条件下对北京西南郊榆垡地区大气边界层污染物O3、NO2、SO2进行了实时监测,对比分析了3种污染物浓度垂直分布及日变化特征。
2.
This paper introduces this harm to plant leaves done by SO_2,Cl_2 and NO_2.
主要针对大气污染物中的SO2、Cl2、NO2等气体对植物叶的危害作以常识介绍并给予验证。
3.
The adsorption and photocatalytic degradation of heptene on(TiO_2/SiO_2) photocatalyst under the irradiation of UV light were investigated carefully in the presence of NO_2.
以TiO2/SiO2为光催化剂,在紫外光作用下,讨论了NO2存在时,庚烯在TiO2/SiO2上的吸附和光催化降解作用。
3) nitrogen dioxide
NO2
1.
The chemical sampling analysis and chemiluminescence and physical analysis of auto monitoring system are used to detect nitrogen dioxide.
根据化学采样分析和环境空气自动监测化学发光物理法测得的NO2浓度结果,进行F检验、T检验,结果无显著性差异。
2.
However,nitrogen dioxide(NO_2), as a byproduct,is also generated,which is harmful even at very low concentration.
在干燥空气中进行脉冲放电可以产生满足临床要求的NO,但同时也会产生对人体有很大伤害的NO2。
3.
Ozone mediated nitration of chlorobenzene with nitrogen dioxide over solid acid catalysts is expected to be a green process.
近年来 NO2 硝化芳烃的研究已引起人们的关注 [1～ 5] ,作为一种新的芳烃清洁合成方法 ,与传统硝酸 -硫酸混合酸硝化相比 ,该方法具有较好的硝化产物选择性、特殊的定位效应以及反应的环境友好等优点 。
4) Nitrite
[英]['naitrait] [美]['naɪtraɪt]
NO2-
1.
Nitrite was diazotized with neutral red,then the product coupled with 8-hydroxyquinoline in weak base solution to produced coupling compound.
NO2-与中性红在HCl介质中发生重氮化反应,生成的重氮盐在弱碱性溶液中与8-羟基喹啉发生偶联反应,偶联产物使得位于588 nm的共振散射光强度明显增强。
2.
The adsorptive ability of the water-insoluble dietary fibre for nitrite is studied in this paper.
测定了白果壳水不溶性膳食纤维对NO2-的吸附作用。
3.
The adsorption property of nitrite on cross-linked chitosan was studied through 8-Hydroxyquinoline as a coupling reagent with the spectrophotometry was used to determine the density of the adsorbed nitrite.
壳聚糖交联壳聚糖对亚硝酸根离子的吸附机理,既有固体表面的物理吸附,也有溶液中离子之间的静电吸附,即质子化的阳离子CCTS-NH3+与阴离子NO2-的静电引力吸附。
5) NO~-_2
NO2-
1.
An accelerated solvent extraction-ion chromatographic(ASE-IC) method was developed for the extraction and determination of NO~-_3 and NO~-_2 in meat.
在所建立的色谱条件下,NO3-、NO2-的质量浓度与峰面积或峰高具有很好的线性和重复性。
2.
The effect of the NO~-_2 on denitrifying dephosphatation is discussed in details in this paper.
并重点探讨了NO2-对反硝化除磷的影响,以期为传统脱氮除磷工艺的研究、改进提供新思路。
6) NO_2~-
NO2-
1.
The analysis of the reactant products of CuS and HNO_3(analyse daily density)that is in different temperatures and concentrates shows: the reactant products of CuS and HNO_3 not only confine NO、 NO_2 and S,but also have NO_2~-and SO_4~(2-),it is a more complicated reaction.
对不同温度,不同浓度(分析常用浓度)下的HNO3与CuS反应产物的分析表明:CuS与HNO3的反应产物不局限于NO、NO2和单质S,还有NO2-和SO42-生成,是一个比较复杂的反应。
2.
The effects of kudingcha [Ilexlartifolia Thunb and Ligustrum rbutum(Roxb) Blume]for eliminating NO_2~-and·OH were investigated in an in vitro experiment,in which the pH of gastric juice was simulated and the two test materials were brewed under different conditions.
以粗壮女贞苦丁茶[Ligustrum rbutum(Roxb)B lum e]、大叶冬青苦丁茶(IlexlartifoliaThunb)为试材,在体外模拟胃液pH条件下,对比研究了不同冲泡条件下苦丁茶浸出液对NO2-和。
补充资料：2号熔剂(fluxing agent No.2)
分子式：
CAS号：
性质：又称2号熔剂(fluxing agent No.2)。黄色或橙黄色固体。是氯化钾、氯化镁、氯化钡等的混合物。极易潮解。有毒!由氯化钾、氯化镁、氯化钡、氯化钙等固体原料按一定配比混合，加入电炉加热至650℃左右，加入石油焦除去硫酸根，经约1h后，升温至700℃熔融，经冷却，粉碎制得。用作铝镁冶金的保护剂和精炼剂。还用于国防工业。
CAS号：
性质：又称2号熔剂(fluxing agent No.2)。黄色或橙黄色固体。是氯化钾、氯化镁、氯化钡等的混合物。极易潮解。有毒!由氯化钾、氯化镁、氯化钡、氯化钙等固体原料按一定配比混合，加入电炉加热至650℃左右，加入石油焦除去硫酸根，经约1h后，升温至700℃熔融，经冷却，粉碎制得。用作铝镁冶金的保护剂和精炼剂。还用于国防工业。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条